CN216434569U - Spectacle lens and optical spectacles - Google Patents

Spectacle lens and optical spectacles Download PDF

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CN216434569U
CN216434569U CN202122049933.8U CN202122049933U CN216434569U CN 216434569 U CN216434569 U CN 216434569U CN 202122049933 U CN202122049933 U CN 202122049933U CN 216434569 U CN216434569 U CN 216434569U
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zone
ophthalmic lens
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lens according
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孙亚健
侯学文
王曌
解江冰
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Eyebright Suzhou Medical Apparatus And Instruments Co ltd
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Eyebright Suzhou Medical Apparatus And Instruments Co ltd
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Abstract

The utility model provides an eyeglass and an optical eyeglass. A plurality of micro lenses are arranged on at least one of the front surface and the back surface of the spectacle lens, each micro lens is configured to have independently settable refractive power, and a blocking structure with specific structural parameters is arranged between two adjacent micro lenses, and the specific structural parameters are configured to deflect light rays and form visual interference. When the eye object of the wearer rotates to look at the micro-lens area, visual interference can be generated, the eye of the wearer is forced to be in the middle of vision, the human eye and the lens system are always in the central position, the problem that the out-of-focus state of the lens with the peripheral out-of-focus design is unstable when the eye object of the wearer rotates is solved, and the control effect of peripheral out-of-focus on myopia is favorably improved.

Description

Spectacle lens and optical spectacles
Technical Field
The utility model 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 dioptric concept, fig. 1, where 10 is the retina, as indicated at 30, and that the person with focus in front of the retina is called myopic defocus, and that the person with focus behind the retina is called hyperopic defocus, as indicated at 20 in fig. 1. The central part of the retina of the myopic eye is myopic defocus, while the periphery of the retina is hyperopic defocus, and the hyperopic defocus at the periphery of the retina is a main reason for promoting the increasing of the myopic eye 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 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.
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. 2, when the eyeball 100 is in an orthotopic view, because the lens 200 is designed such that the refractive power of the peripheral area is greater than that of the central area, the central ray 01 falls on the retina, and the peripheral rays 02 and 03 fall in front of the retina, thereby forming myopic peripheral defocus, which is the original design intention 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. 3, 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.
SUMMERY OF THE UTILITY MODEL
The utility model 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.
In order to achieve the above object, according to one aspect of the present invention, there is provided an eyeglass lens, on at least one of a front surface and a rear surface of the eyeglass lens, a plurality of microlenses are provided, each microlens being configured such that a refractive power can be set individually, a blocking structure having specific structural parameters configured to deflect light rays and form a visual disturbance is provided between adjacent two microlenses.
Further, the ophthalmic lens includes a central zone having a power of a prescription for correcting ametropia of the vision and a peripheral zone disposed around the central zone, the peripheral zone being provided with a plurality of microlenses, each microlens having a power configured such that the power of the peripheral zone is greater than the power of the central zone.
Further, the width of the blocking structure is greater than or equal to 0.01mm and less than or equal to 0.20 mm.
Further, the depth of the blocking structure is 0.01mm or more and 0.2mm 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 peripheral zone includes a plurality of annular zones arranged in sequence around the central zone, and the refractive powers of the plurality of annular zones gradually increase from the optical center to the radial outer side of the spectacle lens.
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 peripheral area comprises a plurality of annular areas which are arranged in sequence and are arranged around the central area, and the refractive powers of the microlenses positioned in the same annular area are the same.
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-lenses are triangular, quadrangular or hexagonal.
Further, the area of the micro lens is more than or equal to 0.007mm2And is less than or equal to 2.61mm2
Further, 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.
Further, the micro lens is a spherical or aspherical lens.
Further, the ophthalmic lens comprises a central zone and a peripheral zone arranged around said central zone, the central zone having a diameter equal to or greater than 6mm and equal to or less than 20mm, or alternatively, the central zone having a diameter equal to or greater than 8mm and equal to or less than 18 mm.
According to another aspect of the present invention, there is provided an optical glasses comprising the above-mentioned spectacle lens, the optical glasses being frame glasses.
By applying the technical scheme of the utility model, when the eye object of the wearer rotates to look at the micro-lens area, visual interference is generated, so that the eye of the wearer is forced to be in the middle of the eye, the eye and the lens system are always in the middle position, the problem of unstable defocusing state of the lens with peripheral defocusing design when the eye object of the wearer rotates is solved, and the control effect of peripheral defocusing on myopia is favorably improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is an explanatory diagram of myopic defocus and hyperopic defocus;
FIG. 2 is an explanatory diagram of myopic peripheral defocus formed when the eyeball is in normal position;
FIG. 3 is an explanatory diagram of the disturbance of defocus caused by deviation of eyeball;
fig. 4 shows a schematic structural view of an ophthalmic lens according to a first embodiment of the utility model;
FIG. 5 shows a schematic structural view of an ophthalmic lens of example two of the present invention;
fig. 6 shows a schematic structural view of an ophthalmic lens of a third embodiment of the present invention; and
FIG. 7 shows a schematic view of a microlens microstructure according to an embodiment 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 the embodiments and features of the embodiments in the present application 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.
In some spectacle lenses in the prior art, the spectacle lens is characterized in that an optical area is divided into a central area and a peripheral area, the peripheral area is composed of one or more concentric rings, a part of the rings are provided with circular microlenses, and the optical powers of the microlenses and other areas are inconsistent so as to form a peripheral defocus effect. The gaps between the circular microlenses are large, the defocusing area can only reach 70%, and the effect of myopia control is influenced. Accordingly, there is a need to provide a new type of ophthalmic lens.
As shown in fig. 4 to 6, the present invention provides an eyeglass lens. A plurality of micro lenses are arranged on at least one of the front surface and the back surface of the spectacle lens, each micro lens is configured to have a refractive power which can be set independently, a blocking structure 70 with specific structural parameters is arranged between two adjacent micro lenses, and the specific structural parameters are configured to deflect light rays and form visual interference.
After the above-mentioned lens is worn to the wearer, can produce visual interference when the thing is looked to the microlens region to wearer's eyes, force the eye of wearer to look at in, make people's eye and lens system be in the position placed in the middle always, solve the out of focus state unstable problem that the lens of peripheral out of focus design leads to when the thing is looked to people's eyes rotates, be favorable to improving the control effect of peripheral out of focus to myopia.
The ophthalmic lens includes an optic zone including a central zone 40 and a peripheral zone 50 disposed about the central zone 40, the central zone 40 having a power of a prescription for correcting refractive error of the vision, the peripheral zone 50 being provided with a plurality of microlenses, each microlens configured to have an individually settable power such that the power of the peripheral zone 50 is greater than the power of the central zone 40.
In the above technical solution, by arranging the peripheral zone 50 around the central zone 40 and dividing the spectacle lens into the central zone 40 and the peripheral zone 50, the optical zone of the spectacle lens can be arranged in different zones, so as to realize the difference of focal points of the microlenses in the central zone 40 and the peripheral zone 50; the micro lens array 60 formed by a plurality of sequentially arranged micro lenses is arranged on the peripheral area 50, the refractive power of each micro lens is larger than that of the retina at the corresponding position (namely, the focus of the micro lens array on the peripheral area 50 is in front of the retina) by setting the refractive power of the sequentially arranged micro lenses, and the peripheral area 50 can be in an out-of-focus state in the whole 360-degree circumferential direction, so that the imaging in the circumferential direction is ensured to fall on the front side of the retina of a wearer, and the myopia control is effectively carried out.
In addition, the microlens array 60 is configured such that the refractive power of each microlens can be set independently, the refractive power of the microlens at a certain or certain specific position can be adjusted independently according to the actual condition of the wearer, and the defocus distribution of the peripheral area 50 is adjusted, so that the refractive power of the peripheral area 50 is greater than that of the central area 40, and the purpose of correcting myopia is achieved; the spectacle lens has a wide application range.
As shown in fig. 7, in the present invention, the blocking structure 70 is a groove, the width of which is greater than or equal to 0.01mm and less than or equal to 0.20mm, and the depth of the blocking structure 70 is greater than or equal to 0.01mm and less than or equal to 0.2 mm.
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 present invention, the peripheral zone 50 includes a plurality of annular zones arranged in sequence around the central zone 40, the plurality of annular zones are arranged in sequence along the radial direction of the spectacle lens, the refractive powers of the plurality of annular zones gradually increase from the optical center to the radial outer side of the spectacle lens, and the difference between the refractive power of the annular zone located on the radial outer side and the refractive power of the annular zone located on the radial inner side in any two adjacent annular zones is equal to or greater than 0.25D.
In this way, by arranging the refractive powers of the microlenses, jumps in the refractive powers of the plurality of annular regions in the peripheral region are relatively uniform from the radially inner side to the radially outer side of the spectacle lens, and the defocus amount is gradually increased, so that the visual image quality is better.
In the embodiment of the utility model, the refractive powers of the microlenses in the same annular area are the same. In this way, it is convenient to process or arrange the annular area, and the peripheral area is divided into a plurality of annular areas arranged in sequence, and for the spectacle lens of the same size, after such arrangement, the refractive power of the peripheral area gradually increases from the radially inner side to the radially outer side, so that the defocus amount also gradually increases, and better visual imaging quality can be ensured.
In the embodiment of the present invention, the power of the peripheral area 50 is greater than that of the central area 40, and the difference between the two is greater than or equal to 0.5D. In the embodiment of the utility model, the micro lens is triangular, quadrangular or hexagonal. By adopting the shape, on one hand, the arrangement of the micro lenses in the micro lens array is tighter; on the other hand, can also guarantee to leave certain structure of blocking between the adjacent microlens, block the space that the structure formed and can make light deflection, consequently, can produce visual interference when the eyes of wearer see to the microlens region, play the effect that disturbs peripheral continuous, clear formation of image of lens, and then improve the effect of control myopia.
In the embodiment of the utility model, the area of the micro lens is more than or equal to 0.007mm2And is less than or equal to 2.61mm2. The area of the micro-lens is controlled within the range, on one hand, the number of the micro-lenses in a unit area can be ensured to be 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 defocus area, so as to better control the myopia.
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, or 80% or more, or 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 more the number of the microlenses in a unit area is, and the larger the diopter adjustable range 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 utility model, when the micro lens is an aspheric lens, the aspheric surface of the aspheric lens satisfies the following formula:
Figure DEST_PATH_GDA0003507085430000051
wherein c is the curvature of the spherical surface, Q is the aspherical coefficient, A2iAre aspheric coefficients.
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.
The utility model 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 microlens 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 spherical aberration can be reduced, an effect of correcting axial aberration can be achieved, and processing cost can be controlled within a certain range.
The solution according to the utility model is illustrated below by means of different examples:
example one
As shown in FIG. 4, in one embodiment, the central zone 40 of the ophthalmic lens has a diameter of 6.0mm and the peripheral zone 50 has an annular area. The annular region is composed of a plurality of microlenses arranged in an array, and the contour of each microlens is triangular. Wherein the area of the micro lens is 0.14cm2. The width of the blocking structure between two adjacent microlenses was 0.05mm, and the depth of the blocking structure was 10 μm. The power of the central zone 40 is-3.0D and the power of the microlenses making up the peripheral zone 50 is-2.0D.
Example two
Example two, center of spectacle lensThe diameter of the zone 40 is 8.0mm and the peripheral zone 50 has two annular regions. The outline of the microlens in each annular region is square. The area of the micro lens is 1cm2. 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, 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 III
In the third embodiment, the central zone 40 of the ophthalmic 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 (as shown in fig. 6). The area of the micro lens is 2.61cm2. 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, the power of the lenticules in the annular zone furthest from the center is-4.0D and the power of the lenticules in the annular zone in the middle 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: the optical area of the spectacle lens comprises a central area and a peripheral area arranged around the central area, the refractive power of the peripheral area is larger than that of the central area, the peripheral area is provided with an annular area, the annular area is provided with a microlens array formed by a plurality of microlenses arranged in sequence, each microlens is configured to be independently settable in refractive power, a groove is arranged between every two adjacent microlenses, the width of the groove is greater than or equal to 0.01mm and less than or equal to 0.20mm, and the depth of the groove is greater than or equal to 0.01mm and less than or equal to 0.2 mm; through the arrangement, the space formed by the groove 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 groove 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.
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 (15)

1. An ophthalmic lens, characterized in that a plurality of microlenses are provided on at least one of the front and rear surfaces of the ophthalmic lens, each microlens being configured such that the optical power can be set individually, and a blocking structure (70) having specific structural parameters configured to deflect light rays and create visual interference is provided between two adjacent microlenses.
2. The ophthalmic lens according to claim 1, characterized in that it comprises a central zone (40) and a peripheral zone (50) arranged around said central zone (40), said central zone (40) having a power of a prescription for correcting a vision ametropia, said peripheral zone (50) being provided with said plurality of microlenses, each having a power configured so that the power of said peripheral zone (50) is greater than the power of said central zone (40).
3. Ophthalmic lens according to claim 1, characterized in that the width of the blocking structure (70) is greater than or equal to 0.01mm and less than or equal to 0.20 mm.
4. Ophthalmic lens according to claim 1, characterized in that the depth of the blocking structure (70) is greater than or equal to 0.01mm and less than or equal to 0.2 mm.
5. 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%.
6. The ophthalmic lens according to claim 2, characterized in that said peripheral zone (50) comprises a plurality of annular zones arranged in succession around said central zone (40), the power of which progressively increases from the optical centre to the radially outer side of the ophthalmic lens.
7. The ophthalmic lens according to claim 2, 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 radially on the outside and the power of the annular zone radially on the inside of any two adjacent annular zones being greater than or equal to 0.25D.
8. The ophthalmic lens according to claim 2, characterized in that said peripheral zone (50) comprises a plurality of annular zones arranged in succession around said central zone (40), the microlenses located in the same annular zone having the same power.
9. The ophthalmic lens according to claim 2, 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.
10. The ophthalmic lens according to any one of claims 1 to 9, characterized in that said microlenses are triangular or quadrangular or hexagonal.
11. The ophthalmic lens according to any one of claims 1 to 9, characterized in that the area of the microlens is equal to or greater than 0.007mm2 and equal to or less than 2.61mm 2.
12. The spectacle lens according to any one of claims 1 to 9, wherein an arrangement density of the plurality of microlenses gradually increases or decreases from an optical center to a radially outer side of the spectacle lens.
13. The ophthalmic lens according to any one of claims 1 to 9, characterized in that the micro-lens is a spherical or aspherical lens.
14. Ophthalmic lens according to any one of claims 1 to 9, characterized in that it comprises a central zone (40) and a peripheral zone (50) arranged around said central zone (40), said central zone (40) having a diameter greater than or equal to 6mm and less than or equal to 20mm, or said central zone (40) having a diameter greater than or equal to 8mm and less than or equal to 18 mm.
15. Optical eyeglasses, characterized in that it comprises an ophthalmic lens according to any one of claims 1 to 14, said optical eyeglasses being rimmed eyeglasses.
CN202122049933.8U 2021-08-29 2021-08-29 Spectacle lens and optical spectacles Active CN216434569U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114815309A (en) * 2022-05-26 2022-07-29 苏州明世光学科技有限公司 Out-of-focus spectacle lens and mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114815309A (en) * 2022-05-26 2022-07-29 苏州明世光学科技有限公司 Out-of-focus spectacle lens and mold
CN114815309B (en) * 2022-05-26 2024-05-24 苏州明世光学科技有限公司 Defocused spectacle lens and die

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