CN115728961A

CN115728961A - Spectacle lens and optical spectacles

Info

Publication number: CN115728961A
Application number: CN202110999529.9A
Authority: CN
Inventors: 孙亚健; 侯学文; 王曌; 解江冰
Original assignee: Abbott Beijing Medical Technology Co ltd
Current assignee: Abbott Beijing Medical Technology Co ltd
Priority date: 2021-08-29
Filing date: 2021-08-29
Publication date: 2023-03-03

Abstract

The invention provides an eyeglass and an optical eyeglass. The ophthalmic lens comprising a central zone and a peripheral zone, the central zone having a power of a prescription for correcting vision ametropia, enabling focusing of the image on the retina of the wearer; the peripheral area is composed of a plurality of micro lenses which are densely arranged, each micro lens is configured to be capable of being independently arranged in refractive power, a bionic compound eye area is formed, images are completely focused on the front side of the retina of a wearer, the peripheral area is enabled to be in an out-of-focus state in the whole circumferential direction of the retina of the wearer, and accordingly myopia control is effectively conducted. In addition, since each microlens constituting the peripheral region is configured such that the refractive power can be set individually, it is possible to scientifically customize defocus according to the vision correction requirement of each patient.

Description

Spectacle lens and optical spectacles

Technical Field

The invention relates to the field of optical equipment, in particular to a spectacle lens and optical glasses.

Background

The main reason for the increase of the myopic eye degree is the lengthening of the axial length of the eye, and the degree is increased by 3.00 degrees every 1mm of the lengthening. Recent medical research has demonstrated that elongation of the eye depends on peripheral retinal defocus, which is referred to in terms of the dioptric concept, with reference to fig. 1, where 10 is the retina, as indicated at 30, and that those with a focus in front of the retina are called myopic defocus, and that those with a focus behind the retina are called hyperopic defocus, as indicated at 20 in fig. 1. The center of the retina of a myopic eye is myopic defocus, while the periphery of the retina is hyperopic defocus, which is a main reason for promoting the increasing of myopic degree.

The eyeball has the characteristic of inducing the development of the eyeball by depending on the imaging of the periphery of the retina, particularly the myopia of teenagers below 18 years old, if the imaging of the periphery of the retina is hyperopic defocusing, the retina tends to grow to an image point, the length of the eyeball is prolonged, and if the imaging of the periphery of the retina is myopic defocusing, the eyeball is stopped being prolonged. If the peripheral hyperopic defocus of the retina is corrected or the peripheral myopic defocus of the retina is artificially formed by a modern medical method, the continuous increase of the myopic eye degree can be prevented, the reason causing the peripheral defocus of the retina can be found out, and the occurrence and the development of the myopic eye can be effectively prevented.

The control effect of peripheral defocus on myopia is influenced by the defocus amount, the defocus area and the defocus stability. The larger the defocus, the larger the ratio of defocus area to optical zone area, the centered position of the eye and lens system at all times, the better the control.

However, there have been studies to often confuse the defocus formed by the front optical system of human eye with the peripheral defocus of retina, the defocus formed by the optical system means that the focal point of the central optical area is not at one point or on one plane with the focal point of the peripheral optical area, for example, the peripheral optical area has stronger refractive power, the focal point (as indicated by point B in fig. 1) will fall before the focal point of the central optical area (as indicated by point a in fig. 1), but it is uncertain whether such defocus is enough to form the "myopic peripheral defocus", because in the optical system of human eye, the curvature of retina also needs to be considered. Therefore, whether the desired peripheral defocus is formed or not depends on the form of the retina and the matching of the front-end optical system, and the study of the bending characteristics of the retina is a precondition for scientifically seeing "myopic peripheral defocus".

In the human eye structure, the optical center does not coincide with the geometric center. As shown in fig. 2, the optical center of the human eye, located 0.35cm from and slightly below the temporal side of the optic disc at the base of the eye, is the projection point of the visual axis, and this area is called the macular area. The depression in the center of the macula, called the fovea 1, is the sharpest place of vision. The fovea 1 of the macula is connected to a light source 2, which is the visual axis 3 of the human eye. Since the viewing axis 3 is tilted, the optical system around the viewing axis 3 will not be rotationally symmetric.

The myopia control products in the prior art, including orthokeratology lens, multifocal contact lens, defocus RGP, defocus frame lens, etc., are designed to be rotationally symmetric with reference to the center, and do not consider the non-rotational symmetry of the optical system of the human eye, so that only most of the images 21 fall on the front side of the retina 10 (as shown in fig. 3), complete myopic peripheral defocus of 360 ° in the circumferential direction is difficult to achieve, and the control effect on myopia is not good.

In addition, there are glasses lens using peripheral defocus to control myopia, such as patent CN201910710155.7, patent CN201980004571.3, patent CN202110550377.4, patent CN202110550964.3 and patent CN201310628174.8. The lens is characterized in that the optical area is divided into a central area and a peripheral area, the peripheral area is composed of concentric rings, a part of the rings are provided with circular microlenses, and the refractive powers of the microlenses and other areas are different, so that a peripheral defocusing effect is formed. However, these circular microlenses can all see significant separation, with a small ratio of defocus area to optic zone area, affecting the effectiveness of myopia control, as shown in fig. 4A and 4B.

In addition, in peripheral defocus control techniques such as orthokeratology lenses and contact lenses which are synchronized with the movement of the eyeball, the movement of the eyeball does not generally change the peripheral defocus state of the optical system of the human eye relative to the formation of the retina, and thus the formed peripheral defocus for making myopia is stable. However, in the case of spectacle frames with peripheral myopic defocus designs, the defocus in the foveal and peripheral regions can be altered by movement of the eye. As shown in fig. 5, when the eyeball 100 is in an orthotopic view, the power of the peripheral area is greater than that of the central area due to the design structure of the lens 200, so that the central ray 01 falls on the retina, and the peripheral rays 02 and 03 fall in front of the retina, forming myopic peripheral defocus, which is the original design of the designer and is also an ideal state. However, if the eyeball moves and the position of the spectacles relative to the frame changes, imaging is performed as shown in fig. 6, peripheral rays 02 become central rays in a new optical system, and some myopia may be formed, while rays 01, which are originally in the center, become peripheral rays in the new system, and because the power is smaller than that of the periphery, far-vision peripheral defocus may be formed. Therefore, the existing frame glasses are difficult to produce good myopia control effect.

Disclosure of Invention

The invention mainly aims to provide an eyeglass and an optical glasses, so as to solve the problem of poor myopia control effect in the prior art.

The compound eye structure is mainly present in the eyes of insects (e.g. bees), which are sensory organs consisting of an indefinite number of small eyes. The facets are generally hexagonal, each of which is imaged separately, and the brain integrates each image to obtain three-dimensional information, as shown in fig. 7. The invention mainly uses the compound eye structure for reference, and provides a spectacle lens and optical glasses with a brand new structure design, and the peripheral area of the spectacle lens is set to be similar to the compound eye structure shown in fig. 7, so that the spectacle lens and the optical glasses can be ensured to be in a defocused state in the 360-degree circumferential direction of the retina of a human eye, as shown in fig. 8 and 9.

In order to achieve the above object, according to one aspect of the present invention, there is provided an ophthalmic lens comprising a central zone having a prescribed refractive power for correcting vision ametropia, and a peripheral zone, enabling focusing of an image on a retina of a wearer; the peripheral area is composed of a plurality of micro lenses which are densely arranged, the refractive power of each micro lens can be independently set to form a bionic compound eye area, images are completely focused on the front side of the retina of a wearer, and the peripheral area is in an out-of-focus state in the whole circumferential direction of the retina of the wearer.

Further, the central zone is also formed by a plurality of closely spaced microlenses, each configured to be individually settable with a refractive power that effects focusing of an image on the retina of the wearer.

Furthermore, the micro-lens is in a shape of triangle or a composite shape corresponding to the outline of a figure formed by seamlessly splicing a plurality of triangles as shape units.

Further, the micro lens is at least one of a triangle, a quadrangle and a hexagon.

Further, the microlenses are hexagonal.

Further, the first refractive power D1 of each microlens and the second refractive power D2 of the corresponding position of the retina of the wearer satisfy: l D1 l < | D2 l.

Further, the first refractive power D1 and the second refractive power D2 numerically satisfy the formula: (D1-D2) is less than or equal to 2L; wherein, L is the distance between the micro lens and the optical center of the defocused lens, and the unit is mm.

Furthermore, a blocking structure for deflecting light rays is arranged between two adjacent micro lenses.

Further, the width of the blocking structure is more than or equal to 0.01mm and less than or equal to 0.20mm; or the width of the blocking structure is more than or equal to 0.01mm and less than or equal to 0.15mm; alternatively, the width of the blocking structure is 0.01mm or more and 0.1mm or less.

Furthermore, the depth of the blocking structure is more than or equal to 0.01mm and less than or equal to 0.2mm; or the depth of the blocking structure is more than or equal to 0.01mm and less than or equal to 0.15mm; alternatively, the depth of the blocking structure is 0.01mm or more and 0.1mm or less.

Further, the ratio of the total area of the micro lenses to the area of the area where the micro lenses are located is greater than or equal to 70%, or greater than or equal to 80%, or greater than or equal to 90%.

Further, the area of the micro lens is more than or equal to 0.007mm ² And is less than or equal to 2.61mm ² 。

Further, the greater the distance of the microlens from the optical center of the central region, the greater the refractive power of the microlens.

Further, the refractive powers of the microlenses at the same radial distance from the optical center of the central region, at different circumferential positions, are different.

Further, the refractive powers of the microlenses at the same radial distance from the optical center of the central region and at different circumferential positions are the same.

Further, the arrangement density of the plurality of microlenses gradually increases or decreases from the optical center of the spectacle lens to the radially outer side.

Further, the power of the peripheral area is greater than that of the central area, and the difference between the two is greater than or equal to 0.5D.

Further, the micro lens is a spherical or aspherical lens.

Further, when the microlens is an aspheric lens, the aspheric surface of the aspheric lens has a surface shape satisfying the following formula:

wherein c is the curvature of the spherical surface, Q is the aspherical coefficient, A _2i Are aspheric coefficients.

Further, the peripheral zone includes a plurality of annular zones arranged in sequence around the central zone, and the refractive power of the plurality of annular zones gradually increases from the optical center of the spectacle lens to the radial outer side.

Further, the peripheral area includes a plurality of annular areas arranged in sequence around the central area, and in any two adjacent annular areas, the difference between the refractive power of the annular area located on the radially outer side and the refractive power of the annular area located on the radially inner side is greater than or equal to 0.25D.

Further, the diameter of the central region is 6mm or more and 20mm or less, or the diameter of the central region is 8mm or more and 18mm or less.

According to another aspect of the present invention, there is provided an optical glasses comprising the above-mentioned spectacle lens.

Further, the optical glasses are frame glasses. By applying the technical scheme of the invention, the following technical effects can be realized:

first, the peripheral zone of lens is formed by a plurality of microlens of arranging in proper order, every microlens is configured into the refracting power and can sets up alone, single microlens is similar to a little monocular that constitutes bee compound eye, constitute the bionical compound eye region of similar bee compound eye structure jointly by a plurality of microlenses, can set up alone and control through the refracting power to every microlens, make the refracting power of every microlens all be less than the refracting power of the retina of corresponding position (namely the focus of all microlenses in the peripheral zone all guarantees to fall before the retina), so make the peripheral zone of lens all can be in out of focus state in whole 360 circumferential direction, thereby guarantee that the formation of image in the circumference all falls before wearer's retina, effectively carry out myopia control. In addition, because a single micro lens can independently image and has a focus, each focus has a certain depth of field, and the plurality of micro lenses are densely arranged, more focuses and continuous depth of field can be provided, so that the depth of focus extension of a certain degree can be realized, the object is comfortable and natural, and the wearing experience is improved.

Second, each microlens in the peripheral area of the spectacle lens is configured to have individually settable refractive power, and the defocus can be customized according to the vision correction requirement of each patient, especially for special requirements (such as pupil diameter and original defocus state), and the customization is supported.

And thirdly, the micro lenses are in a composite shape corresponding to the outer contour of a figure formed by seamlessly splicing triangles or a plurality of triangles as shape units, the micro lenses can be selected from at least one of triangles, quadrangles and hexagons, most preferably hexagons, and the micro lenses can be densely arranged by adopting the shapes, so that the gaps between the adjacent micro lenses can be reduced, the defocusing area of the peripheral area can be enlarged, the correctable range of the defocusing lens is enlarged, and the correcting effect can be improved.

Fourth, in addition, be equipped with between two adjacent microlens and be used for making the structure that blocks of light deflection, solve the out-of-focus state unstable problem that lens that peripheral out-of-focus design leads to when people's eyes look thing and rotate, make people's eye and lens system be in the central position always. In this embodiment, the blocking structure is a groove having predetermined structural parameters, specifically, a width of the groove is greater than or equal to 0.01mm and less than or equal to 0.20mm, and a depth of the groove is greater than or equal to 0.01mm and less than or equal to 0.2mm; through the arrangement, the space formed by the groove with the depth can deflect light, so that visual interference can be generated when the eye sight of a wearer rotates to look at the micro-lens area, the eye of the wearer is forced to be in a central position with the lens system all the time in the eye sight of the wearer, the problem of unstable out-of-focus state caused by the rotation of the eye sight of the lens with peripheral out-of-focus design is solved, and the control effect of peripheral out-of-focus on myopia is favorably improved.

Further, the width of the groove is controlled within the above range of 0.01mm to 0.20mm, and in the case of the spectacle lens having the same size as the prior art, the area of the defocus area of the spectacle lens of the present embodiment is larger, and the ratio of the defocus area to the optical area can be increased, thereby enabling better control of myopia.

Fifth, in the present invention, the ratio of the total area of the microlenses to the area of the region in which the microlenses are located is 70% or more, preferably 80% or more, and more preferably 90% or more, so that the proportion of myopic peripheral defocus formed is sufficiently large to enable better control of myopia.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of optical peripheral defocus and peripheral defocus relative to the retina;

FIG. 2 shows a schematic diagram of the visual axis of a human eye structure;

FIG. 3 is a graphical illustration of the effect of imaging of a prior art ophthalmic lens on the position of the retinal surface;

FIG. 4A shows a schematic diagram of a prior art lens structure and its power profile;

figure 4B shows a schematic view of another prior art lens configuration and its power profile;

fig. 5 is an explanatory view showing myopic peripheral defocus formed when the eyeball is in the normal position;

FIG. 6 is an explanatory view showing a defocus state disturbance phenomenon occurring when an eyeball is deviated;

FIG. 7 shows a schematic diagram of a bee compound eye structure;

FIG. 8 is a schematic diagram showing the effect of imaging of a lens of the invention in relation to the position of the retinal surface;

figure 9 shows a schematic diagram of the power distribution of the lens of the invention;

fig. 10 shows a schematic structural view of an ophthalmic lens according to a first embodiment of the present invention;

fig. 11 shows a schematic structural view of an ophthalmic lens of example two of the present invention;

fig. 12 shows a schematic structural view of an ophthalmic lens of a third embodiment of the present invention;

FIG. 13 shows a schematic view of a microlens microstructure according to an embodiment of the invention;

fig. 14 shows a schematic structural view of an ophthalmic lens of embodiment four of the present invention;

fig. 15 shows a schematic structural view of an ophthalmic lens of embodiment five of the present invention;

fig. 16 shows a schematic structural view of an ophthalmic lens of embodiment six of the present invention; and

fig. 17 shows a schematic structural view of an ophthalmic lens of embodiment seven of the present invention.

Wherein the figures include the following reference numerals:

40. a central region; 50. a peripheral zone; 60. a microlens array; 70. a blocking structure.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The compound eye structure is mainly present in the eyes of insects (e.g. bees), and is a sensing organ consisting of an indefinite number of small eyes. The facets are generally hexagonal, each of which is imaged separately, and the brain integrates each image to obtain three-dimensional information, as shown in fig. 7. The invention mainly uses the compound eye structure for reference, and provides a spectacle lens and optical glasses with a brand new structure design, and the peripheral area of the spectacle lens is set to be similar to the compound eye structure shown in fig. 7, so that the spectacle lens and the optical glasses can be ensured to be in a defocused state in the 360-degree circumferential direction of the retina of a human eye, as shown in fig. 8 and 9.

As shown in fig. 10 to 12, the present invention provides an eyeglass lens. The ophthalmic lens comprises a central zone 40 and a peripheral zone 50 disposed about the central zone 40, wherein the central zone 40 has a prescribed refractive power for correcting ametropia of the eye to effect focusing of an image on the retina of a wearer. The central zone 40 primarily provides ametropia correction to provide clear normal vision for learning and living needs. The peripheral area 50 is composed of a plurality of microlenses arranged densely, each microlens is configured such that the refractive power can be set individually, and a bionic compound eye area (as shown in fig. 9) similar to the compound eye structure of an insect (particularly, a bee) is formed by the plurality of microlenses, so that the image is focused on the front side of the retina of the wearer (as shown in fig. 8), and the peripheral area is out of focus in the whole circumferential direction of the retina of the wearer.

It should be noted that the bionic compound eye region refers to a region formed by a plurality of micro lenses (similar to a plurality of sub-eyes of insects) arranged closely in an array or the like. Through setting up bionical compound eye district, can realize in the whole circumference of peripheral region continuous, the defocus of gradual change (as shown in fig. 9), solve among the prior art because of cliff formula defocus or the discontinuous defocus problem that myopia control effect is not good that leads to.

In the present embodiment, the following equation is satisfied between the first refractive power D1 of the microlens and the second refractive power D2 of the corresponding position of the retina of the wearer: l D1 l < | D2 l.

Further, the following formula is numerically satisfied between the first refractive power D1 and the second refractive power D2: (D1-D2) is less than or equal to 2L; wherein, L is the distance between the micro lens and the optical center of the defocused lens, and the unit is mm. By defining the magnitude relation between the first refractive power D1 and the second refractive power D2, the defocus amount of the peripheral region 50 can be defined within a certain range, and thus, the problems of poor visual quality and poor imaging effect due to an excessively large defocus amount can be avoided, thereby avoiding the situation of poor correction effect.

In this embodiment, the optical power of the peripheral area gradually increases from the radially inner side to the radially outer side, and thus the defocus amount also gradually increases, which can ensure better visual imaging quality.

In the present embodiment, the greater the distance of the microlens from the optical center of the central zone 40, the greater its refractive power. Therefore, the defocusing amount is gradually increased, and better visual imaging quality can be ensured.

In the embodiment of the present invention, the distance from the focal points of the plurality of lenses to the retina is the same on the circumferential circle having the fovea of the retina as the origin and the same distance from the origin. I.e., the power of the microlenses at the same radial distance from the optical center of central region 40, at different circumferential locations, is different.

Through the setting, the defocusing amount of the plurality of micro lenses in the circumferential direction can be consistent, namely, the distance from the focuses of the plurality of lenses to the retina is the same, so that the imaging degree on the retina is consistent, the final visual quality and the imaging effect can be improved, and the final correction effect is ensured.

In the embodiment of the present invention, the refractive powers of the microlenses at the same radial distance from the optical center of the central region 40 and at different circumferential positions are the same.

As shown in fig. 10 to 12, in the embodiment of the present invention, the microlens is a triangle or a composite shape formed by seamlessly splicing a plurality of triangle units. The composite shape is preferably at least one of a triangle, a quadrangle, and a hexagon, and is most preferably a hexagon. The plurality of microlenses may be identical in shape, e.g., all triangular or quadrilateral or hexagonal; it may be different, for example, one part may be triangular and the other part may be quadrangular or hexagonal.

With the above arrangement, a plurality of adjacent microlenses can be arranged closely together, so that the gap between adjacent microlenses can be reduced, thereby enlarging the periphery

Particularly, in the present invention, the realization form of the microlens is preferably hexagonal, the hexagonal shape can be imaged independently, and the hexagonal shape has the least boundary, the largest photosensitive area and the least aberration in the densely paved shape, so that the hexagonal microlens can be densely arranged to provide a larger peripheral defocus area in the same area, which is helpful for improving the myopia control effect.

The area of zone 50 out of focus, so that the range over which the out of focus lens can be corrected is expanded, and the correction effect can be improved.

As shown in fig. 13, in the present invention, a blocking structure 70 for deflecting light is disposed between two adjacent microlenses. Preferably, the blocking structure 70 is a groove. The width of the blocking structure 70 is greater than or equal to 0.01mm and less than or equal to 0.20mm, preferably, the width of the blocking structure 70 is greater than or equal to 0.01mm and less than or equal to 0.15mm; more preferably, the width of the blocking structure 70 is 0.01mm or more and 0.1mm or less.

In a specific embodiment of the present invention, the depth of the blocking structure 70 is 0.01mm or more and 0.2mm or less; preferably, the depth of the blocking structure is greater than or equal to 0.01mm and less than or equal to 0.15mm; more preferably, the depth of the blocking structure is 0.01mm or more and 0.1mm or less.

Through the arrangement, the space formed by the blocking structure with the depth can deflect light, so that visual interference can be generated when the eyes of a wearer look at the micro-lens area, the continuous and clear imaging effect of the periphery of the interference lens is achieved, and the myopia control effect is further improved; further, the width of the blocking structure is controlled within the above-mentioned range of 0.01mm to 0.20mm, and in the case of the spectacle lens having the same size as the prior art, the area of the out-of-focus zone of the spectacle lens of the present embodiment is larger, thereby enabling better control of myopia.

In the embodiment of the invention, the area of the micro lens is more than or equal to 0.007mm ² And is less than or equal to 2.61mm ² . By controlling the area of the microlens within the above range, the unit area can be securedThe number of the micro lenses is large, and the refractive power of the micro lens array can be adjusted according to actual requirements; on the other hand, the whole peripheral area can be ensured to have a larger out-of-focus area, so that myopia can be better controlled.

In order to increase the defocus area of the spectacle lens and improve the myopia control effect under the same size of the spectacle lens as in the prior art, the microlens array 60 in the embodiment of the present invention is configured to: the ratio of the total area of all the microlenses constituting the microlens array 60 to the area of the annular region in which the microlens array 60 is located is 70% or more, preferably 80% or more, and more preferably 90% or more.

In the embodiment of the present invention, the microlens array 60 includes a plurality of lens groups arranged in sequence, each lens group includes a plurality of microlenses arranged in sequence along the circumferential direction, and the arrangement density of the plurality of microlenses gradually increases or decreases from the optical center to the radial outer side of the spectacle lens.

The larger the arrangement density of the microlenses is, the larger the number of the microlenses in a unit area is, and the larger the adjustable range of the refractive power of the microlenses is; through setting up the microlens array density of different lens groups, can adjust the refracting power of the microlens in different positions according to actual wearer's condition for the application scope of this product is wider.

In the embodiment of the invention, when the micro lens is an aspheric lens, the aspheric surface shape of the aspheric lens satisfies the following formula:

In the embodiment of the present invention, the diameter of the central region 40 is 6mm or more and 20mm or less.

Preferably, the central region 40 has a diameter of 8mm or more and 18mm or less.

More preferably, the central region 40 has a diameter of 10mm or more and 16mm or less.

As shown in fig. 14 and 15, by way of example and not limitation, central zone 40 may also be formed by a plurality of closely spaced microlenses, each microlens configured to have an individually settable optical power that effects focusing of an image on the retina of a wearer.

As shown in fig. 16 and 17, by way of example and not limitation, the peripheral zone 50 comprises a plurality of annular zones arranged in sequence around the central zone 40, the power of the plurality of annular zones increasing progressively from the optical center to the radially outer side of the ophthalmic lens.

Further, the peripheral region 50 includes a plurality of sequentially arranged annular regions disposed around the central region 40, and of any two adjacent annular regions, the difference between the power of the radially outer annular region and the power of the radially inner annular region is greater than or equal to 0.25D.

The invention also provides an optical glasses, which comprises the spectacle lens. For example, the optical lens may be a frame lens, a keratoplasty lens, a scleral contact lens, or an intraocular lens; preferably, the optical glasses are framed glasses.

The micro-lens can be formed by film pasting, coating, machining, etching or photoetching, and the like, and the machining mode is diversified.

In an embodiment of the present invention, the micro lens is a spherical or aspherical lens. In each annular region, a part of the microlenses in the microlens array 60 may be spherical lenses, and the rest of the microlenses may be aspheric, so that the spherical aberration can be reduced, the effect of correcting the axial aberration can be achieved, and the processing cost can be controlled within a certain range.

The solution according to the invention is illustrated below by means of different examples:

example one

As shown in fig. 10, in the first embodiment, the central area 40 of the spectacle lens has a diameter of 6.0mm, and the fly's eye structure of the peripheral area 50 is composed of a plurality of microlenses whose outline is triangular. Wherein the area of the micro lens is 0.14cm ² . The width of the blocking structure between two adjacent micro lenses is 0.05mm, and the depth of the blocking structureIs 10 microns. The power of the central zone 40 is-3.0D and the power of the microlenses making up the peripheral zone 50 is greater than-3.0D.

The power level of the microlenses in the peripheral region 50 is also related to the distance from the center, with the farther from the center, the greater the power of the microlenses.

Since the power of the microlens at each position is individually set, only the power distribution at each position will be described below. (D1-D2) at different orientations of the same diameter may be the same, as shown at 1mm, 2mm and 3mm in Table 1 below; (D1-D2) may be different, as shown at 4mm, 5mm in Table 1 below.

TABLE 1

Example two

As shown in fig. 11, in the second embodiment, the central area 40 of the spectacle lens has a diameter of 8.0mm, and the outline of the microlenses in the compound eye structure of the peripheral area 50 is square. The area of the micro lens is 1cm ² . The blocking structure between two adjacent microlenses has a width of 0.1mm and a depth of 50 microns. The power of the central zone 40 of the ophthalmic lens is-1.0D and the power of the microlenses making up the peripheral zone 50 is greater than-3.0D.

EXAMPLE III

In the third embodiment, the central area 40 of the spectacle lens has a diameter of 10.0mm, and the microlens contour in the compound eye structure of the peripheral area 50 is hexagonal (as shown in fig. 12). The area of the micro-lens is 2.61cm ² . The blocking structure between two adjacent microlenses has a width of 0.2mm and a depth of 100 microns. The power of the central zone 40 of the ophthalmic lens is-6.0D and the power of the microlenses making up the peripheral zone 50 is greater than-6.0D.

Example four

Fig. 14 shows a schematic structural view of an eyeglass lens of embodiment four of the present invention. As shown in fig. 14, in the present embodiment, the central area 40 and the peripheral area 50 are both provided with microlens arrays. The microlenses are triangular, and the area of each microlens in the microlens array is 0.14mm ² Adjacent two to each otherThere is no gap between the microlenses. The central zone 40 of the out-of-focus lens is 1.0mm in diameter, and the microlenses within this range have a uniform power of-3.0D. The power of the microlenses in the peripheral region 50 is greater than the power of the central region 40, i.e., greater than-3.0D.

EXAMPLE five

Fig. 15 shows a schematic structural view of an ophthalmic lens of embodiment five of the present invention. As shown in fig. 15, in the present embodiment, the central area 40 and the peripheral area 50 are both provided with a microlens array. The microlenses making up the central region 40 and the microlenses making up the peripheral region 50 are hexagonal. The area of each microlens is 2.01mm ² And a gap is reserved between every two adjacent micro lenses, and the size of the gap is 0.1mm. The central zone 40 is 10.0mm in diameter and the microlenses within this range have a uniform power of-8.0D. The power of the microlenses in the peripheral region 50 is greater than the power of the central region 40, i.e., greater than-8.0D.

EXAMPLE six

Fig. 16 shows a schematic structural view of an ophthalmic lens of embodiment six of the present invention. As shown in fig. 16, in the present embodiment, the central zone 40 of the spectacle lens has a diameter of 8.0mm, and the peripheral zone 50 has two annular zones. The outline of the microlens in each annular region is square. The area of the micro lens is 1cm ² . The width of the blocking structure between two adjacent microlenses is 0.1mm, and the depth is 50 micrometers. The power of the central zone 40 of the ophthalmic lens is-1.0D, the power of the lenticules in the annular zone near the center is +1.0D, and the power of the lenticules in the annular zone farther from the center is +2.0D.

EXAMPLE seven

Fig. 17 shows a schematic structural view of an eyeglass lens of embodiment seven of the present invention. As shown in fig. 17, in the present embodiment, the central zone 40 of the spectacle lens has a diameter of 10.0mm, and the peripheral zone 50 has three annular zones. The microlens profile of the annular region is hexagonal. The area of the micro lens is 2.61cm ² . The blocking structure between two adjacent microlenses has a width of 0.2mm and a depth of 100 microns. The power of the central zone 40 of the ophthalmic lens is-6.0D, the power of the lenticules in the annular zone closest to the center is-5.5D, and the lenticules in the annular zone furthest from the center areThe lens power is-4.0D and the microlens power in the intermediate annular region is-5.0D.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

first, the peripheral zone of lens is formed by a plurality of microlenses that arrange in proper order, every microlens is configured into refractive power and can sets up alone, single microlens is similar to a little monocular that constitutes bee compound eye, constitute the bionical compound eye region of similar bee compound eye structure jointly by a plurality of microlenses, can set up alone and control through the refractive power to every microlens, make the refractive power of every microlens all be less than the refractive power of the retina of corresponding position promptly all the microlenses of peripheral zone the focus all guarantee to fall in the retina in front, so make the peripheral zone of lens all can be in out of focus state in whole 360 circumferential direction, thereby guarantee that the formation of image in the circumference all falls in front of wearer's retina, effectively carry out near-sighted control. In addition, because a single micro lens can independently image and has a focus, each focus has a certain depth of field, and the plurality of micro lenses are densely arranged, more focuses and continuous depth of field can be provided, so that the depth of focus extension of a certain degree can be realized, the object is comfortable and natural, and the wearing experience is improved.

Second, each microlens of the peripheral zone of the spectacle lens is configured to have individually settable refractive power, and the defocus can be customized scientifically according to the vision correction requirement of each patient, and the customized defocus is particularly supported by special requirements such as pupil diameter and original defocus state.

Thirdly, the micro lenses are in a triangular shape or a composite shape formed by seamlessly splicing a plurality of triangular units, the micro lenses can be selected from at least one of a triangular shape, a quadrilateral shape and a hexagonal shape, and most preferably a hexagonal shape.

Fourthly, in addition, be equipped with between two adjacent microlens and be used for making the structure that blocks of light deflection, solve the out of focus unstable problem of state that peripheral out of focus lens of design leads to when people's eyes look thing and rotate, make people's eyes and lens system be in the intermediate position always. In this embodiment, the blocking structure is a groove having predetermined structural parameters, specifically, a width of the groove is greater than or equal to 0.01mm and less than or equal to 0.20mm, and a depth of the groove is greater than or equal to 0.01mm and less than or equal to 0.2mm; through this kind of setting, the space that the recess that has above-mentioned degree of depth formed can make light offset, consequently, can produce visual disturbance when the eyes of the wearer look thing and rotate and look to the lenticule region to in forcing the eyes of the wearer to look, make people's eye and lens system be in the central position always, solve the out of focus state unstable problem that the lens of peripheral out of focus design leads to when the eyes look thing and rotate, be favorable to improving the control effect of peripheral out of focus to myopia.

Further, the width of the groove is controlled within the above range of 0.01mm to 0.20mm, and in the case of the spectacle lens having the same size as the prior art, the area of the out-of-focus zone of the spectacle lens of the present embodiment is larger, and the ratio of the out-of-focus area to the optical zone area can be increased, thereby enabling better control of myopia.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ophthalmic lens, comprising;

a central zone (40) having a prescribed refractive power for correcting vision ametropia, enabling focusing of the image on the retina of the wearer;

the peripheral area (50) is composed of a plurality of micro lenses which are densely arranged, the refractive power of each micro lens can be independently set, a bionic double-eye area is formed, the image is completely focused on the front side of the retina of the wearer, and the peripheral area is in a defocused state in the whole circumferential direction of the retina of the wearer.

2. Ophthalmic lens according to claim 1, characterized in that the central zone (40) is also constituted by a plurality of microlenses in a dense arrangement, each of said microlenses being configured so that the optical power, which enables focusing of the image on the retina of the wearer, can be set individually.

3. The spectacle lens as claimed in claim 1, wherein the micro lens has a triangular shape or a complex shape corresponding to an outer contour of a pattern formed by seamlessly stitching a plurality of triangular shape units.

4. The ophthalmic lens of claim 1, wherein the microlenses are at least one of triangular, quadrilateral, hexagonal.

5. The ophthalmic lens of claim 1, wherein the microlenses are hexagonal.

6. Ophthalmic lens according to claim 1, characterized in that between the first refractive power D1 of each microlens and the second refractive power D2 of the corresponding position of the retina of the wearer there is satisfied: l D1 l < | D2|.

7. The ophthalmic lens of claim 6, wherein the first refractive power D1 and the second refractive power D2 numerically satisfy the formula: (D1-D2) is less than or equal to 2L; wherein, L is the distance between the micro lens and the optical center of the defocused lens, and the unit is mm.

8. Ophthalmic lens according to claim 1, characterized in that between two adjacent microlenses there is provided a blocking structure (70) for deflecting the light.

9. The ophthalmic lens according to claim 8, characterized in that the width of the blocking structure (70) is greater than or equal to 0.01mm and less than or equal to 0.20mm; or the width of the blocking structure (70) is more than or equal to 0.01mm and less than or equal to 0.15mm; alternatively, the width of the blocking structure (70) is not less than 0.01mm and not more than 0.1mm.

10. Ophthalmic lens according to claim 8, characterized in that said blocking structure (70) has a depth greater than or equal to 0.01mm and less than or equal to 0.2mm; or the depth of the blocking structure (70) is more than or equal to 0.01mm and less than or equal to 0.15mm; alternatively, the depth of the blocking structure (70) is 0.01mm or more and 0.1mm or less.

11. The ophthalmic lens according to claim 1, characterized in that the ratio of the total area of said microlenses to the area of the zone in which they are located is equal to or greater than 70%, or equal to or greater than 80%, or equal to or greater than 90%.

12. Ophthalmic lens according to claim 1, characterized in that the area of the micro-lenses is equal to or greater than 0.007mm ² And is less than or equal to 2.61mm ² 。

13. Ophthalmic lens according to claim 1, characterized in that the greater the distance of said microlens from the optical centre of said central zone (40), the greater the refractive power of said microlens.

14. Ophthalmic lens according to claim 1, characterized in that the refractive power of the microlenses at different circumferential positions, at the same radial distance from the optical centre of the central zone (40), is different.

15. The ophthalmic lens according to claim 1, characterized in that the refractive power of the microlenses at different circumferential positions at the same radial distance from the optical center of the central zone (40) is the same.

16. The spectacle lens as claimed in claim 1, wherein the arrangement density of the plurality of microlenses gradually increases or decreases from the optical center to the radially outer side of the spectacle lens.

17. The ophthalmic lens according to claim 1, characterized in that the power of the peripheral zone (50) is greater than the power of the central zone (40) by a difference equal to or greater than 0.5D.

18. The ophthalmic lens according to claim 1, characterized in that said micro-lens is a spherical or aspherical lens.

19. The ophthalmic lens of claim 18, wherein when the microlens is an aspherical lens, the aspherical surface of the aspherical lens satisfies the following formula:

20. The ophthalmic lens according to any one of claims 1 to 19, characterized in that said peripheral zone (50) comprises a plurality of annular zones arranged in sequence around said central zone (40), the power of said plurality of annular zones increasing progressively from the optical centre to the radially outer side of the ophthalmic lens.

21. The ophthalmic lens according to any one of claims 1 to 19, characterized in that said peripheral zone (50) comprises a plurality of annular zones arranged in succession around said central zone (40), the difference between the power of the annular zone situated radially on the outside and the power of the annular zone situated radially on the inside of any two adjacent annular zones being greater than or equal to 0.25D.

22. Ophthalmic lens according to any one of claims 1 to 19, characterized in that the diameter of the central zone (40) is equal to or greater than 6mm and equal to or less than 20mm, or in that the diameter of the central zone (40) is equal to or greater than 8mm and equal to or less than 18mm.

23. Optical eyeglasses, characterized in that it comprises an ophthalmic lens according to any one of claims 1 to 22.

24. The optical glasses according to claim 23, wherein the optical glasses are frame glasses.