CN218240584U - Dot matrix diffusion type out-of-focus spectacle lens and spectacles - Google Patents
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Abstract
The application discloses dot matrix diffusion type out of focus lens and glasses, dot matrix diffusion type out of focus lens include: a master mirror comprising an optical center and an edge; a microlens array disposed on the master mirror, the microlenses being located between the optical center and the edge; the micro lens array comprises a plurality of groups of annular bands which are arranged at intervals by taking an optical center as a circle center; each group of ring belts comprises a plurality of micro lenses which are rotationally and symmetrically distributed along the optical center; wherein the diameter of the micro-lenses increases in a direction extending from the optical center toward the edge. The micro-lens array is distributed in a circular ring shape, micro-lenses on all ring belts are gradually increased from inner diameters to outer diameters according to a certain proportion, so that the influence of the change of the field angle on the actual perception defocusing area of eyes is counteracted, and the stimulation of defocusing signals which are relatively stable all the time in each azimuth pupil saccadic range of the lens is ensured, so that the perception defocusing area of eyes is approximately kept unchanged, and the functional effect of the lens is not influenced by the change of the oblique field angle.
Description
Technical Field
The application relates to the technical field of eye vision optics, in particular to a dot matrix diffusion type out-of-focus spectacle lens and spectacles.
Background
In recent years, the arrangement of microstructures on a spectacle lens has attracted more and more attention as a technical means for inhibiting the increase of the eye axis and slowing down the progression of myopia, but since the diameter of the microlenses arranged in the actual structure of the spectacle lens is not changed, the actual perceived defocus area of the human eyes is reduced along with the increase of the angle of view, so that the defocus effect of the spectacle lens is influenced when a wearer looks obliquely at a larger angle of view, which is not beneficial to the correction of myopia.
Disclosure of Invention
The purpose of the invention is as follows: the application provides a dot matrix diffusion type out-of-focus spectacle lens, which aims to solve the problem that the out-of-focus area perceived by human eyes is reduced when the conventional spectacle lens is used; another object of the present application is to provide glasses comprising the above lattice diffusion type out-of-focus spectacle lens.
The technical scheme is as follows: the utility model provides a dot matrix diffusion type out of focus lens includes:
a parent mirror comprising an optical center and an edge;
a microlens array disposed on the parent mirror, the microlenses being located between the optical center and the edge;
the micro lens array comprises a plurality of groups of annular bands which are arranged at intervals by taking the optical center as a circle center; each set of the zones comprises a plurality of microlenses that are rotationally symmetric along the optical center;
wherein the diameter of the micro lens increases in a direction extending from the optical center toward the edge, the diameter of the micro lens having a maximum value D max And minimum value D min Satisfies the following conditions:
0.3mm≤D max -D min less than or equal to 2.5mm and less than or equal to 0.5mm D min ≤1.2mm，1.3mm≤D max ≤3.5mm。
In some embodiments, the microlenses in each group of the zones are connected to each other or spaced apart from each other; and/or
The microlenses in each set of the zones are equal in diameter.
In some embodiments, the distances between the zones are equal or unequal; the distance between the ring belts is 1-3 mm.
In some embodiments, the microlens array includes a maximum outer diameter d max And a minimum inner diameter d min And satisfies the following conditions:
3≤d max /d min less than or equal to 14; and/or
0.60≤d max /d 0 Not more than 0.90, and d is not less than 0.06 min /d 0 ≤0.20；
Wherein d is 0 Representing the diameter of the parent mirror.
In some embodiments, the maximum outer diameter d max The minimum inner diameter d min And the diameter d of the mother mirror 0 Further satisfies:
50mm≤d max less than or equal to 70mm; and/or
4mm≤d min Less than or equal to 14mm; and/or
60mm≤d 0 ≤80mm。
In some embodiments, the diameter of the microlenses increases in equal proportion in a direction extending from the optical center toward the edge.
In some embodiments, the parent mirror comprises a first optical surface near the eye side and a second optical surface facing away from the first optical surface;
the microlens array is located on the first optical surface; or
The microlens array is located on the second optical surface.
In some embodiments, at least one of the first optical surface and the second optical surface is any one of a spherical surface, an aspherical surface, or a free-form surface.
In some embodiments, the ophthalmic lens comprises a first dioptric zone and a second dioptric zone; wherein the second Qu Guangou is the area where the microlens array covers the mother lens, and the first refractive area is the area of the spectacle lens excluding the second refractive area; wherein the ophthalmic lens satisfies:
|D 2 -D 1 |≥3D；
wherein D is 2 Is the refractive power of the second dioptric area, D 1 Is the refractive power of the first dioptric area.
In some embodiments, the present application provides an eyeglass comprising the lattice-diffusing through-focus spectacle lens.
Has the advantages that: compared with the prior art, the dot matrix diffusion out of focus lens of this application includes: a master mirror comprising an optical center and an edge; a microlens array disposed on the master mirror, the microlenses being located between the optical center and the edge; the micro lens array comprises a plurality of groups of annular bands which are arranged at intervals by taking an optical center as a circle center; each group of ring belts comprises a plurality of micro lenses which are rotationally and symmetrically distributed along the optical center; wherein the diameter of the micro lens increases along the direction extending from the optical center to the edge, and the diameter of the micro lens has a maximum value D max And a minimum value D min And satisfies the following conditions: d is not more than 0.3mm max -D min Not more than 2.5mm and not more than 0.5mm D min ≤1.2mm，1.3mm≤D max Less than or equal to 3.5mm. The micro-lens array is distributed in a circular ring shape, micro-lenses on all ring belts are gradually increased from inner diameters to outer diameters according to a certain proportion, so that the influence of the change of the field angle on the actual perception defocusing area of eyes is counteracted, and the stimulation of defocusing signals which are relatively stable all the time in each azimuth pupil saccadic range of the lens is ensured, so that the perception defocusing area of eyes is approximately kept unchanged, and the functional effect of the lens is not influenced by the change of the oblique field angle.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic front view of a lattice-diffusing out-of-focus spectacle lens provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of a front side of another lattice-diffusing out-of-focus spectacle lens provided in an embodiment of the present application;
FIG. 3 is a schematic side view of a lattice-diffusing out-of-focus spectacle lens provided in an embodiment of the present application;
reference numerals: 10-mother mirror, 20-microlens array, 101-optical center, 102-edge, 103-first optical surface, 104-second optical surface, 201-annulus, 2011-microlens.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying that the number of indicated technical features is indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, the lattice diffusion-type out-of-focus spectacle lens includes: a master mirror 10 comprising an optical center 101 and an edge 102; a microlens array 20, the microlens array 20 being disposed on the mother mirror 10, the microlens array 20 being located between the optical center 101 and the edge 102; the micro lens array 20 comprises a plurality of groups of annular bands 201, and the plurality of groups of annular bands 201 are arranged at intervals by taking the optical center 101 as a circle center; each set of zones 201 comprises a plurality of microlenses 2011, the microlenses 2011 being rotationally symmetric about the optical center 101; wherein the diameter of the microlens 2011 increases in a direction extending from the optical center 101 toward the rim 102, the diameter of the microlens 2011 has a maximum value D max And a minimum value D min And satisfies the following conditions: d is not more than 0.3mm max -D min Less than or equal to 2.5mm and less than or equal to 0.5mm D min ≤1.2mm，1.3mm≤D max ≤3.5mm。
In some embodiments, the lattice diffusion type out-of-focus spectacle lens is composed of a plurality of microlenses 2011 which are circularly and rotationally symmetrically distributed from inside to outside with the optical center as the center; the inner entity here refers to the optical center 101 of the parent mirror 10, and the outer entity refers to the edge 102 of the parent mirror 10; according to the fact that the saccade area of human eyes is increased along with the increase of the field angle, the wearing effect is fully considered by the micro-lens structure with the dot matrix diffusion, the problem that discomfort is caused due to the fact that micro-lenses are too dense in the area around the optical center is avoided, the diameter of the micro-lens 2011 on each annular belt 201 is gradually increased from inside to outside according to a certain proportion, the defocusing area perceived by the human eyes is kept unchanged approximately, the defocusing area ratio can be increased, and meanwhile the wearing comfort is effectively improved.
In some embodiments, the maximum value D when the diameter of the microlens 2011 is max And a minimum value D min D is not less than 0.3mm max -D min When the field angle of the human eye changes less than or equal to 2.5mm, the actual perception defocusing area in the saccade range of the wearer keeps approximately stable, and the perception defocusing area of the human eye keeps approximately unchanged, so that the stimulation of defocusing signals is always kept stable when the wearer obliquely views through different field angles, and the functional effect of the lens is not influenced by the change of the oblique field angle. In particular, D min The value of (a) can be in any value of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.1mm, 1.2mm or the range between any two values; d max The value of (a) may be any one of 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm or a range between any two values. In some embodiments, the minimum value D min The preferred range is 1.0 to 1.2mm, maximum D max A preferable range is 1.5 to 1.7mm.
In some embodiments, the microlenses 2011 in each set of annular bands 201 are connected to or spaced apart from each other; referring specifically to fig. 1, the microlenses 2011 in each set of annular strips 201 are spaced apart, with a gap therebetween; referring to fig. 2 in particular, the microlenses 2011 in each group of zones 201 are connected to each other, in this application, the microlenses 2011, regardless of the spacing or the connection arrangement, are circularly and rotationally symmetrically distributed from inside to outside with the optical center 101 as the center, and the diameters of the microlenses 2011 on each zone 201 are increased gradually in proportion from the optical center 101 to the edge 102.
In some embodiments, referring to fig. 3, the parent mirror 10 includes a first optical surface 104 near the eye side and a second optical surface 105 facing away from the first optical surface 104; wherein the microlens array 20 is located on the first optical surface 104; or the microlens array 20 is located on the second optical surface 105. The first optical surface 104 and the second optical surface 105 together form a first dioptric zone having a prescribed refractive power based on the wearer's needs; the area of the microlens array 20 covering the mother lens 10 forms a second Qu Guangou, and the second dioptric region has a second refractive power different from the prescribed refractive power, so that when the incident light passes through the area of the second dioptric region after the glasses are worn by a wearer, the imaging focus of the incident light can form a near-sighted out-of-focus state.
In some embodiments, at least one of the first optical surface 104 and the second optical surface 105 is any one of a spherical surface, an aspherical surface, or a free-form surface.
In some embodiments, the ophthalmic lens satisfies:
|D 2 -D 1 |≥3D；
wherein D is 2 Refractive power in the second dioptric region, D 1 Is the refractive power of the first dioptric area, D is the abbreviation of diopter, diopter being the unit of the magnitude of the refractive power. When the refractive powers of the second Qu Guangou and the first dioptric area satisfy the above relationship, the defocus effect of the wearer in oblique viewing at a large field angle can be stabilized.
In some embodiments, to ensure uniform imaging, the microlenses 2011 in each set of zones 201 have equal diameters, which ensures that the pupil scans the area imaged at a uniform location; of course, in some other embodiments, the microlenses 2011 in each set of annular bands 201 may be unequal, but only if the diameter of the microlenses 2011 increases in the inside-out direction of the mother mirror 10.
In some embodiments, the distances between the bands 201 are equal or unequal; the distance between the endless belts 201 is 1 to 3mm. The distance between the zones 201 can be adjusted to the defocus area for fitting different wearers.
In some embodiments, referring to FIG. 2, microlens array 20 includes a maximum outer diameter d max And a minimum inner diameter d min Satisfies the following conditions: d is not less than 3 max /d min Less than or equal to 14; and/or
0.60≤d max /d 0 D is not more than 0.90 and not more than 0.06 min /d 0 Less than or equal to 0.20; wherein d is 0 The diameter of the mother mirror 10; wherein the maximum outer diameter d max Specifically, the diameter of the outer ring of the outermost zone in the microlens array 20; minimum inner diameter d min Specifically, the diameter of the inner circle of the innermost zone in the microlens array 20; the outermost value is the side closer to edge 102 and the innermost value is the side closer to optical center 101. When the micro lens array 20 satisfies the above range, the micro lenses can be further ensured to be distributed on the surface of the mother lens 10 in the range of the human eye-scanning area, and the relatively stable out-of-focus signal stimulation is ensured in all directions of the lens in the range of the pupil scanning.
In some embodiments, the maximum outer diameter d max Minimum inner diameter d min And diameter d of the mother mirror 0 Further satisfies: d is not less than 50mm max ≤70mm；4mm≤d min ≤14mm；60mm≤d 0 Less than or equal to 80mm. Wherein the maximum outer diameter d max The value of (a) can be any one of 50mm, 55mm, 60mm, 65mm and 70mm or a range between any two values; minimum inner diameter d min The value of (a) can be any one value or a range between any two values of 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm and 14mm; diameter d of the mother mirror 0 The value of (a) may be any one of 60mm, 65mm, 70mm, 75mm, 80mm or a range between any two values.
In some embodiments, to further ensure stability of the actual perceived defocus area over the saccade range of the wearer, the diameter of the microlenses 2011 increases proportionally in the direction extending from the optical center 101 towards the edge 102. The fact that the diameter of the microlenses 2011 is increased proportionally is that the diameter of the ring zone 201 from the inside to the outside is set in an equal-proportion array, and the increasing proportion is 1.1 or more. In some embodiments, the manner in which the diameter of microlens 2011 increases in a direction extending from optical center 101 toward edge 102 may also include a non-uniform increase, including, for example: the diameter of the microlenses in the first and second turns is the same, and the diameter of the microlenses increases from the third turn, so the increase claimed in this application actually ensures that the diameter of the microlenses 2011 tends to increase in the direction extending from the optical center 101 toward the edge 102.
In some embodiments, microlenses 2011 are triangular, quadrilateral, polygonal, or elliptical; alternatively, the zones 201 are distributed in a triangular, quadrilateral, polygonal, circular or elliptical pattern around the optical center 101. The different shaped zones 201 may provide defocus adjustment for different refractive states.
In some embodiments, the material of the mother mirror 10 includes a polymer material or an inorganic non-metal material. Wherein, the high molecular material comprises thermoplastic resin or thermosetting resin, and the inorganic non-metallic material comprises glass and the like. The thermoplastic resin includes polycarbonate or polymethyl methacrylate; the thermosetting resin includes any one of acrylic resin, episulfide resin, thiourethane resin, allyl resin, and polyurethane.
In some embodiments, a coating film is formed on a surface of at least one side of the mother mirror 10, and the coating film includes a transparent coating film for increasing transmittance of the lens, a hard coating film for increasing durability of the lens, a reflective film for blocking harmful light, an antireflection film for realizing visibility of image formation, a polarizing film including a color-changing function, or other color-changing film including a material doped with a material sensitive to ultraviolet rays, and the like. The coating film itself can have different colors, and the visual color in the case of light reflection can be green, blue, yellow, purple, and the like, and can also be other colors.
In some embodiments, the process for making an ophthalmic lens can comprise: the method comprises the following steps of manufacturing a spectacle lens blank by using a metal or glass mold through an injection molding or pouring molding process, and then manufacturing the required spectacle lens by processing the rear surface of the blank through a workshop; or the glasses lens blank is made by metal and glass moulds by using a UV light curing process, and then the glasses lens required by the wearer is made by processing the surface of the blank by a workshop; or the spectacle lens patch is made by a metal and glass mould through a UV light curing process, and then the spectacle lens or the spectacle lens blank is made through a bonding process.
In some embodiments, the spectacle lens obtained by the above process can be further prepared and formed after being combined with a spectacle frame, and the shape of the spectacle lens can be circular, square, ellipse-like or other special-shaped structures.
In some embodiments, a piece of superimposed microlens with a power of 1.591, with a corrective power of-4.00D, is made out of focus, e.g., 300 bends at base curve; referring to fig. 1, the defocusing amount of the lattice-diffused microlenses is a spherical design, the refractive power of the lattice-diffused microlenses is +4.25D, the microlens array 20 is distributed on the second optical surface 105 from a 10mm aperture to a 54 mm aperture, wherein the microlens array 20 has 9 circles of annular zones 201, the 1 st circle to the 9 th circle are sequentially arranged from the optical center 101 to the edge 102, and the microlenses 2011 in each circle of annular zone 201 are equal in diameter and distributed at intervals; meanwhile, in the direction extending from the optical center 101 to the edge 102, the diameter of the microlens 2011 increases as the angle of view increases, and the distance between the zones 201 is equal and 1mm, and specific parameters are shown in table 1.
TABLE 1
| Endless belt | Diameter mm of microlens | Radius of the ring belt is mm |
| Circle 1 | 1.00 | 5.50 |
| Circle 2 | 1.10 | 7.55 |
| Circle 3 | 1.22 | 9.71 |
| 4 th turn | 1.34 | 11.98 |
| Circle 5 | 1.48 | 14.37 |
| Circle 6 | 1.62 | 16.91 |
| Circle 7 | 1.79 | 19.60 |
| Circle 8 | 1.96 | 22.46 |
| 9 th ring | 2.16 | 25.51 |
In table 1, the diameters of the microlenses 2011 are increased in equal proportion, the proportion is 1.1, and the diameters of the microlenses 2011 on the respective annular zones 201 are designed to be increased gradually in proportion from the optical center 101 to the edge 102, so that the defocusing area perceived by human eyes can be kept approximately unchanged when the field angle of the human eyes is changed, and therefore, the stimulation of defocusing signals can be kept stable all the time when a wearer obliquely views through different field angles, and the functional effect of the lenses is not influenced by the change of the oblique field angles.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The lattice diffusion type out-of-focus spectacle lenses and the spectacles provided by the embodiment of the application are introduced in detail, and the principle and the implementation mode of the application are explained by applying specific examples, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. Lattice diffusion type out of focus lens, its characterized in that includes:
a parent mirror (10) comprising an optical center (101) and an edge (102);
a microlens array (20), the microlens array (20) disposed on the parent mirror (10), the microlens array (20) located between the optical center (101) and the edge (102);
the micro lens array (20) comprises a plurality of groups of annular zones (201), and the annular zones (201) are arranged at intervals by taking the optical center (101) as a circle center; each set of said annuli (201) comprising a plurality of microlenses (2011), said microlenses (2011) being rotationally symmetric along said optical center (101);
wherein the diameter of the microlenses (2011) increases in a direction extending from the optical center (101) towards the edge (102), the diameter of the microlenses (2011) having a maximum value D max And a minimum value D min And satisfies the following conditions:
0.3mm≤D max -D min less than or equal to 2.5mm and less than or equal to 0.5mm D min ≤1.2mm，1.3mm≤D max ≤3.5mm。
2. The lattice diffusion-type out-of-focus spectacle lens of claim 1, wherein: the micro lenses (2011) in each group of the ring belts (201) are connected with each other or arranged at intervals; and/or
The microlenses (2011) in each set of the zones (201) are equal in diameter.
3. The lattice diffusion-type out-of-focus spectacle lens of claim 1, wherein: the distances between the annuli (201) are equal or unequal; the distance between the ring belts (201) is 1-3 mm.
4. The lattice-diffusing out-of-focus spectacle lens according to claim 3, wherein the microlens array (20) comprises a maximum outer diameter d max And a minimum inner diameter d min And satisfies the following conditions:
3≤d max /d min less than or equal to 14; and/or
0.60≤d max /d 0 Not more than 0.90, and d is not less than 0.06 min /d 0 ≤0.20；
Wherein, d 0 Represents the diameter of the mother mirror (10).
5. The lattice-diffusing out-of-focus spectacle lens of claim 4, wherein the maximum outer diameter d max The minimum inner diameter d min And the diameter d of the mother mirror 0 Further satisfies:
50mm≤d max less than or equal to 70mm; and/or
4mm≤d min Less than or equal to 14mm; and/or
60mm≤d 0 ≤80mm。
6. The lattice-diffusing through-focus spectacle lens according to claim 2, wherein the diameter of the micro-lens (2011) increases proportionally in a direction extending from the optical center (101) towards the edge (102).
7. The lattice-diffusing through-focus spectacle lens according to claim 1, characterized in that the parent lens (10) comprises a first optical surface (104) close to the eye side and a second optical surface (105) facing away from the first optical surface (104);
the microlens array (20) is located on the first optical surface (104); or
The microlens array (20) is located on the second optical surface (105).
8. The lattice-diffusing through-focus spectacle lens of claim 7, wherein at least one of the first optical surface (104) and the second optical surface (105) is any one of a spherical surface, an aspherical surface, or a free-form surface.
9. The lattice diffusion-type out-of-focus spectacle lens of claim 1, wherein the spectacle lens comprises a first dioptric area and a second dioptric area; wherein the second Qu Guangou is the area where the microlens array (20) covers the mother lens (10), and the first refractive area is the area of the spectacle lens excluding the second refractive area; wherein the ophthalmic lens satisfies:
|D 2 -D 1 |≥3D；
wherein D is 2 Is the refractive power of the second dioptric region, D 1 Is the refractive power of the first dioptric area.
10. Glasses, characterized in that they comprise a lattice-diffusing out-of-focus spectacle lens according to any one of claims 1 to 9.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116594194A (en) * | 2023-04-18 | 2023-08-15 | 湖南朗星医疗科技有限公司 | Optical lens and vision correction and myopia prevention and control device |
| CN117348277A (en) * | 2023-11-22 | 2024-01-05 | 苏州高视高清医疗技术有限公司 | A high-end defocused microlens lens and glasses |
| CN117348278A (en) * | 2023-11-22 | 2024-01-05 | 苏州高视高清医疗技术有限公司 | Spectacle lens and spectacles |
-
2022
- 2022-10-31 CN CN202222888568.4U patent/CN218240584U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116594194A (en) * | 2023-04-18 | 2023-08-15 | 湖南朗星医疗科技有限公司 | Optical lens and vision correction and myopia prevention and control device |
| CN117348277A (en) * | 2023-11-22 | 2024-01-05 | 苏州高视高清医疗技术有限公司 | A high-end defocused microlens lens and glasses |
| CN117348278A (en) * | 2023-11-22 | 2024-01-05 | 苏州高视高清医疗技术有限公司 | Spectacle lens and spectacles |
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