CN217467396U - Self-adaptive vision wafer and glasses lens - Google Patents
Self-adaptive vision wafer and glasses lens Download PDFInfo
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Abstract
The utility model provides a self-adaptation eyesight wafer and glasses lens, wherein, this self-adaptation eyesight wafer includes: a transparent substrate and a plurality of superlens units; the size of the transparent substrate is not less than the larger of the size of the single exposure area and the size of the single eyeglass lens; each super lens unit corresponds to one focal length, and the number of the super lens units corresponding to each super lens unit is multiple; each of the superlens units is disposed on at least one side of the transparent substrate in a randomly distributed manner. By the self-adaptive vision wafer and the glasses lens provided by the embodiment of the utility model, the glasses lens with self-adaptive vision function can be conveniently cut out, and the problem of makeup is avoided; the reasonable cutting scheme can effectively utilize the whole self-adaptive vision wafer, can improve the utilization rate and reduce the cost, and is suitable for mass production; and can meet the requirements of people with different degrees (including myopia and hypermetropia), and has universality.
Description
Technical Field
The utility model relates to a glasses technical field particularly, relates to a self-adaptation eyesight wafer and glasses lens.
Background
At present, the degree of the glasses is certain, different users need to customize according to the degree of the users, a complex optometry and customization process is needed, and the glasses are not suitable for low-cost, universal and mass production.
In order to enable one pair of glasses to be suitable for users with different powers, a plurality of super lenses with different powers (focal lengths) can be regularly arranged on the glasses lens to form a self-adaptive vision super lens; for example, the superlenses of different powers are arranged in a ring of concentric rings, and the closer to the center of the optic, the higher the power of the superlens. The brain complement ability and the visual retention of the human brain are utilized, so that users with different degrees can see things before the eyes clearly through the adaptive vision super-lens.
However, since the processing of superlenses and arrays thereof is done using photolithographic processes, the size of the single exposure area (also referred to as the reticule area) is limited (e.g., typically about 26mm x 33mm), while the size of the glasses used daily (e.g., typically about 40mm x 55mm) is larger than the area of the single exposure area. Therefore, if such a problem is to be solved, a makeup process is required, that is, two or more whole regions or partial regions are spliced, which has a very high requirement on splicing errors, resulting in a high processing difficulty and a failure in mass production.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
For example, the above-mentioned adaptive super vision lens is a lens which is developed by the utility model and is not disclosed, and the adaptive super vision lens is described in the background art, and is not considered as the prior art.
SUMMERY OF THE UTILITY MODEL
For solving the problem that the adaptive vision superlens is difficult to the volume production, the utility model provides an aim at provides an adaptive vision wafer and glasses lens.
In a first aspect, an embodiment of the present invention provides a self-adaptive vision wafer, including: a transparent substrate and a plurality of superlens units;
the size of the transparent substrate is not less than the larger of the size of the single exposure area and the size of the single eyeglass lens;
each super lens unit corresponds to one focal length, and the number of the super lens units corresponding to each super lens unit is multiple;
each superlens unit is disposed on at least one side of the transparent substrate in a randomly distributed manner.
In one possible implementation, the random distribution includes an equiprobable random distribution with the focal length of the superlens unit as a random variable;
alternatively, the random distribution comprises: and the focal length or the degree of the superlens unit is used as the non-equal probability random distribution of random variables, and the non-equal probability random distribution is convex random distribution.
In one possible implementation, the size of the transparent substrate is not less than the sum of the sizes of the m adaptive vision lenses, and m is greater than or equal to 2;
or the size of the transparent substrate is not less than the sum of the sizes of the n single exposure areas, and n is more than or equal to 2.
In a possible implementation manner, in a case that the size of the transparent substrate is not less than the sum of the sizes of the n single exposure areas, all the single exposure areas in the adaptive vision wafer are exposure areas determined by a full exposure manner.
In one possible implementation, the size of a single eyeglass lens is c × d, and satisfies:
min(a,c)×min(b,d)＞A ML ×N；
wherein the size of the single exposure area is a x b, A ML The area of a single superlens unit is shown, and N is the number of kinds of superlens units.
In one possible implementation, a plurality of the superlens units are disposed in a close-packed form on at least one side of the transparent substrate.
In one possible implementation, the superlens cells are square, hexagonal, or fan-ring shaped.
In one possible implementation, the aperture of any one of the superlens units is not greater than a maximum aperture, and the maximum aperture is determined based on the superlens unit having the smallest focal length without chromatic aberration.
In one possible implementation, the maximum aperture satisfies:
wherein d is max Representing said maximum caliber, Δ n eff Representing the equivalent refractive index interval corresponding to the super lens unit, h representing the height of the nano structure in the super lens unit, f min Representing the minimum focal length.
In a second aspect, the embodiments of the present invention further provide a glasses lens, which is a glasses lens cut out from the adaptive vision wafer as described above.
In the solution provided by the first aspect of the embodiment of the present invention, the adaptive vision wafer is provided with a plurality of super lens units with different focal lengths in a random distribution manner, so that the spectacle lenses with adaptive vision function can be conveniently cut out from the adaptive vision wafer, thereby avoiding the problem of makeup; and the reasonable cutting scheme can effectively utilize the whole self-adaptive vision wafer, can improve the utilization rate and reduce the cost, and is suitable for mass production. This self-adaptation eyesight wafer can realize different correction effects to the light that sees through, and when the user used the glasses lens of cutting out from this self-adaptation eyesight wafer, utilized the brain complementary ability and the vision of user brain to stop the effect, clear position can be look for automatically to user of different degrees all can see things in front of the eye clearly through this glasses lens. The self-adaptive vision wafer does not need to be subjected to processes of optometry, lens customization and the like, can meet the requirements of people with different degrees (including myopia and hyperopia), and has universality; moreover, the super lens unit has the advantages of simple structure, light weight, low cost and the like, and is convenient for a user to wear.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram illustrating an adaptive vision wafer according to an embodiment of the present invention;
fig. 2A is a schematic diagram illustrating a distribution of superlens units in an adaptive vision wafer according to an embodiment of the present invention;
fig. 2B is a schematic diagram illustrating another distribution of superlens units in an adaptive vision wafer according to an embodiment of the present invention;
fig. 2C is a schematic diagram illustrating another distribution of superlens units in an adaptive vision wafer according to an embodiment of the present invention;
fig. 3 is a schematic top view of an adaptive vision wafer according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a superlens unit according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a cutting process of an adaptive vision wafer according to an embodiment of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, 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 implicitly indicating the number of technical features 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 invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The embodiment of the utility model provides a self-adaptation eyesight wafer for the preparation has the glasses lens of self-adaptation eyesight function, and random distribution has the super lens unit of multiple different number of degrees on this self-adaptation eyesight wafer. Referring to fig. 1, the adaptive vision wafer includes: a transparent substrate 10 and various superlens units 20. Wherein the size of the transparent substrate 10 is not less than the larger of the size of the single exposure area and the size of the single eyeglass lens; each superlens unit 20 corresponds to one focal length, and the number of the superlens units corresponding to each superlens unit 20 is multiple; each superlens unit 20 is disposed on at least one side of the transparent substrate 10 in a randomly distributed manner.
In the embodiment of the present invention, the main structure of the adaptive vision wafer is determined by the lens substrate 10. The transparent substrate 10 is a substrate transparent to at least visible light, and may be specifically made of glass, silicon oxide, or the like. The shape of the transparent substrate 10 is the shape of the adaptive vision wafer, and in general, the transparent substrate 10 is circular. It can be understood by those skilled in the art that, in the case that the wafer may be a non-circular wafer such as a square, a hexagon, etc., the shape of the transparent substrate 10 may also be a non-circular wafer, and the shape of the transparent substrate 10 is not limited in this embodiment.
The super lens units 20 are divided into a plurality of types, each type of super lens unit 20 corresponds to one focal length, namely, the focal length and the lens power are in one-to-one correspondence; since the power of the glasses is equal to the reciprocal of its focal length (in meters) multiplied by 100, each superlens unit 20 also corresponds to a power. Wherein it can be determined which focal lengths of the superlens unit 20 are required based on the current requirements. For example, if the adaptive vision wafer requires 100 degrees, 200 degrees and 300 degrees of superlens units 20, three superlens units 20 are required, and the focal length of each superlens unit 20 is 1000mm, 500mm and 250mm in sequence. Optionally, the reciprocal of the focal length (e.g., power, diopter) of the various superlens units 20 is in an arithmetic series.
The adaptive vision wafer comprises the superlens units 20 with various degrees (focal lengths), and the adaptive vision can be realized by using the superlens units 20 with various degrees. Specifically, each superlens unit 20 needs to include a plurality of superlens units 20, that is, the number of superlens units in each superlens unit 20 is plural, and all superlens units 20 are disposed on one side of the transparent substrate. For example, the superlens units 20 do not overlap each other. Optionally, in order to improve the vision correction effect of the adaptive vision wafer, a plurality of super lens units 20 are disposed in a close-packed form on at least one side of the transparent substrate 10. For example, the superlens unit 20 may be square, hexagonal, or fan-ring shaped in shape to enable a close-packed arrangement. Fig. 1 illustrates an example in which the superlens unit 20 has a square shape. Alternatively, referring to fig. 2A, a plurality of square superlens units 20 are close-packed; referring to fig. 2B, a plurality of hexagonal superlens units 20 are close-packed; referring to fig. 2C, a plurality of fan-ring shaped superlens units 20 are densely packed.
In order to be able to cut out a desired spectacle lens with adaptive vision function from the adaptive vision wafer, the size (e.g., area) of the adaptive vision wafer is at least not smaller than the size of a single spectacle lens, i.e., at least one spectacle lens can be cut out; and, in order to make effective use of the exposure area, the size of the adaptive vision wafer is also not smaller than the size of the single exposure area. Therefore, the size of the adaptive vision wafer or transparent substrate 10 is not less than the larger of the size of the single exposure area and the size of the single eyeglass lens. For example, the area S of the transparent substrate 10 is not smaller than the area S of the single-exposure area 1 And the area s of a single spectacle lens 2 The larger of these, i.e., S ≧ max (S) 1 ,s 2 )。
Also, in order to facilitate cutting out the eyeglass lenses having the adaptive vision function from the adaptive vision wafer, the superlens units 20 in the adaptive vision wafer are disposed on the transparent substrate 10 in a randomly distributed manner. Referring to fig. 3, fig. 3 is a top view of an adaptive vision wafer, which includes eight superlens units 20 (fig. 3 illustrates that the superlens unit 20 is circular in shape), and reference numerals 1, 2, …, and 8 respectively denote one superlens unit 20, i.e., all superlens units 1 have one focal length, all superlens units 2 have another focal length … …, and so on. As shown in fig. 3, the area 200 represents the size of a single spectacle lens, and an area 200 is randomly cut out from the adaptive vision wafer with randomly distributed superlens units 20, so that a spectacle lens can be obtained; moreover, the superlens units 20 in the eyeglass lens are also randomly distributed, so that the adaptive vision function can be realized.
When the adaptive vision wafer is used for manufacturing a far-sighted eyeglass lens, the super-lens unit 20 is similar to a convex lens, the focal length of the super-lens unit is a positive value, and the power of the super-lens unit is a positive value; when the adaptive vision wafer is used to make a spectacle lens for near vision, the superlens unit 20 is similar to a concave lens, and the focal length and the power thereof are negative.
The embodiment of the utility model provides a self-adaptation eyesight wafer, it is equipped with many kinds of super lens unit 20 of different focal length with the mode of random distribution, can convenient cutting out the glasses lens that has self-adaptation eyesight function from this self-adaptation eyesight wafer, has avoided the makeup problem; and the reasonable cutting scheme can effectively utilize the whole self-adaptive vision wafer, can improve the utilization rate and reduce the cost, and is suitable for mass production. This self-adaptation eyesight wafer can realize different correction effects to the light that sees through, and when the user used the glasses lens of cutting out from this self-adaptation eyesight wafer, utilized the brain complementary ability and the vision of user brain to stop the effect, clear position can be look for automatically to user of different degrees all can see things in front of the eye clearly through this glasses lens. The self-adaptive vision wafer does not need to be subjected to processes of optometry, lens customization and the like, can meet the requirements of people with different degrees (including myopia and hyperopia), and has universality; moreover, the superlens unit 20 has the advantages of simple structure, light weight, low cost and the like, and is convenient for a user to wear.
Optionally, the size of the transparent substrate 10 is not less than the sum of the sizes of the m adaptive vision lenses, and m is greater than or equal to 2; or the size of the transparent substrate 10 is not less than the sum of the sizes of n single exposure areas, and n is more than or equal to 2. Namely, the adaptive vision wafer is exposed for multiple times and can be cut into a plurality of spectacle lenses. Further optionally, in the case that the size of the transparent substrate 10 is not less than the sum of the sizes of the n single exposure areas, all the single exposure areas in the adaptive vision wafer are exposure areas determined by a full exposure mode, that is, no gap exists between two adjacent single exposure areas, so that the full exposure can be realized.
Referring to fig. 3, the single full exposure area 100 has a size of a × b and the single eyeglass lens has a size of c × d. When the adaptive vision wafer is manufactured, multiple exposures are needed, the size of each exposure area is a multiplied by b, full exposure is realized in a seamless connection exposure area mode, and the adaptive vision wafer with the super lens unit 20 fully covering the whole transparent substrate 10 can be obtained. Then, a cutting scheme can be designed based on the size of the adaptive vision wafer so as to cut more glasses lenses.
Further optionally, in order to ensure that all kinds of superlens units 20 can be provided in a single eyeglass lens, in the embodiment of the present invention, the size of the single eyeglass lens is c × d, and the following constraint conditions are satisfied:
min(a,c)×min(b,d)＞A ML ×N (1)
wherein the size of the single exposure area is a x b, A ML Indicating the area of a single superlens unit 20 and N indicating the number of classes of superlens units 20.
In the embodiment of the present invention, the constraint condition can guarantee that the spectacle lens covers the probability of the full number of lenses as much as possible, so that all kinds of superlens units 20 are provided in a single spectacle lens. Typically, a single eyeglass lens contains about 100 or more superlens units 20, which are much more than the superlens units 20, and the above constraints can be satisfied.
Optionally, the random distribution includes an equiprobable random distribution having the focal length of the superlens unit 20 as a random variable. That is, the probability of which superlens unit 20 is selected is the same at any position of the adaptive vision wafer. For example, each superlens unit 20 includes the same number of superlens units 20, and all superlens units 20 are randomly distributed on one side of the transparent substrate 10. For example, the adaptive vision wafer needs 10 kinds of superlens units 20 with different focal lengths, and the total number of the superlens units 20 is 1000, 100 superlens units 20 can be selected for each kind, and the adaptive vision lens is generated by arranging in a random arrangement.
Alternatively, the random distribution comprises: the unequal probability random distribution having the focal length or power of the superlens unit 20 as a random variable is a convex random distribution.
In the embodiment of the present invention, the distribution probability of the different kinds of superlens units 20 is different, for example, the number of the different kinds of superlens units 20 may be different. The embodiment of the utility model provides a self-adaptation vision wafer can make the glasses lens that the user that is applicable to certain number of degrees within range used, and the concrete numerical value of this number of degrees scope is relevant with the focus of the super lens unit 20 that self-adaptation vision wafer chooseed for use, and when the user chooseed for use the glasses lens of different number of degrees scopes, chooseed for use the median and self number of degrees assorted glasses lens of this number of degrees scope more easily. For example, the power range of the adaptive vision wafer is 200 degrees to 400 degrees, and the power range of the spectacle lens cut from the adaptive vision wafer is also 200 degrees to 400 degrees, so that the adaptive vision wafer is more easily used by users with the power of 300 degrees. In order to improve the effect of correcting the user's eyesight, the non-equal probability random distribution according to which the superlens unit 20 follows is a convex random distribution, which is a distribution that is high in the middle and low on both sides, i.e., the focal length or power in the middle has a higher probability. For example, the unequal probability random distribution may be a gaussian distribution, a poisson distribution, or the like.
The random variable of the non-equal probability random distribution may be a focal length or a power, and the non-equal probability random distribution of all superlens units 20 may be generally realized by using the power as the random variable. The self-adaptive vision wafer is distributed with all the superlens units 20 in a random distribution mode, is more beneficial to automatically searching clear positions for human eyes and is more suitable for people with different degrees.
Similar to diffractive lenses, superlenses have large chromatic aberrations (compared to refractive lenses), so chromatic aberrations of the superlens units 20 used in adaptive vision wafers need to be corrected. The embodiment of the utility model provides an in, confirm the maximum bore of the super lens unit 20 of no chromatic aberration based on the super lens unit 20 that has the minimum focal length, and arbitrary super lens unit 20's bore is not all greater than this maximum bore, can make super lens unit 20 bore as big as possible, and no chromatic aberration (can there be no chromatic aberration focus), can obtain more clear image quality. Wherein, the aperture of the superlens unit 20 refers to the peripheral dimension of the superlens unit 20; for example, if the superlens unit 20 is circular, the aperture may be a diameter, and if the superlens unit 20 is square, hexagonal, or the like, the aperture may be a diameter of a circumscribed circle of the superlens unit 20.
Alternatively, the superlens unit 20 includes a plurality of periodically arranged nanostructures, and the superlens unit 20 can be designed by selecting appropriate nanostructures from a non-chromatic library. When the superlens unit 20 has no chromatic aberration, the equivalent refractive index zone Δ n corresponding to the superlens unit 20 eff (difference between maximum and minimum equivalent refractive indices of nanostructures in the achromatism library) and maximum value d of aperture d of superlens unit 20 m The relationship between the values satisfies the following expression (2), i.e., the aperture of the superlens unit 20 is smaller than the maximum value d m The superlens unit 20 can correct chromatic aberration.
Where h denotes the height of the nanostructure 201 in the superlens unit 20, and f denotes the focal length of the superlens unit 20.
After determining without color difference library, equivalent refractive index interval delta n eff Is a constant value; as is clear from the above formula (2), the maximum value dm of the aperture of the superlens unit 20 decreases as the focal length f decreases. Because the adaptive vision wafer includes the super lens unit 20 of multiple different focal lengths, if each kind of adaptive vision wafer all chooses for use bigger bore according to respective standard, can lead to different kinds of super lens unit 20 to be of different sizes, arrange difficult, for example accomplish to pack closely and arrange, influence the result of use. The present embodiment sets the maximum aperture that all superlens units 20 cannot exceed, so that the apertures of all superlens units 20 are as large as possible, and the sizes of the superlens units 20 can be uniform, which facilitates the arrangement, for example, facilitates the implementation of close-packed arrangement.
Specifically, the maximum value dm of the aperture of the superlens unit 20 with the minimum focal length fmin is used as the required value of the adaptive vision wafer in the present embodimentThe maximum caliber dmax. The maximum diameter d can be obtained from the above formula (2) max Satisfies the following conditions:
wherein d is max Denotes the maximum caliber, Δ n eff Denotes an equivalent refractive index interval corresponding to the superlens unit 20, h denotes a height of the nano-structure 201 in the superlens unit 20, and f min Representing the minimum focal length.
For example, the adaptive vision wafer has a power range of 200-400 degrees, and the adaptive vision wafer includes five super lens units 20, wherein the five super lens units respectively correspond to 200 degrees, 250 degrees, 300 degrees, 350 degrees and 400 degrees, the super lens unit 20 with the minimum focal length is the super lens unit 20 corresponding to 400 degrees, and the minimum focal length f is min 250 mm. If the equivalent refractive index interval Δ n eff 0.65, the height of the nanostructure is 1200nm, which is obtainable based on the above formula (3), the maximum diameter d max 1.25mm, i.e. the aperture of each superlens unit 20 is not more than 1.25 mm. For example, the apertures of all superlens units 20 are the same and are 1.25 mm. The maximum aperture is determined based on the super lens unit 20 with the minimum focal length, and the apertures of all the super lens units 20 are constrained to be not larger than the maximum aperture, so that the apertures of all the super lens units 20 are as large as possible under the condition of ensuring no chromatic aberration, and clearer image quality can be obtained; moreover, the size of the superlens unit 20 can be unified, and the close packing arrangement is conveniently realized.
Alternatively, since the spectacle lens made by the adaptive vision wafer is mainly used for transmitting natural light, the nano-structure 201 in the super-lens unit 20 adopts a polarization-independent structure. For example, the nanostructure 201 includes: at least one of a nano-pillar structure, a hollow nano-pillar structure, a nano-pore structure, a nano-ring pore structure, a nano-square pillar structure, a square nano-pore structure, a nano-square ring structure, and a nano-square ring pore structure. The dispersion can be tuned by different structure types of nanostructures and duty cycles.
The nanostructure can be an all-dielectric structure unit, has high transmittance in the visible light band, and can be made of the following optional materials: titanium oxide, silicon nitride, fused silica, aluminum oxide, gallium nitride, gallium phosphide, hydrogenated amorphous silicon, and the like. Wherein the nanostructures are arranged in an array. Since the superlens unit 20 includes a plurality of nanostructures 201, in order to reduce the number of nanostructures and reduce the cost, referring to fig. 4, the nanostructures 201 in the superlens unit 20 are arranged in a hexagonal array, and the nanostructures 201 are located at the central position and/or the vertex position of the hexagonal array. Fig. 4 illustrates the central position of the hexagonal array and all vertex positions provided with nanostructures 201.
Based on same utility model design, the embodiment of the utility model provides a still provide a glasses lens, this glasses lens is the glasses lens of cutting out in the self-adaptation vision wafer that provides from above-mentioned arbitrary one item of embodiment.
The structure of the adaptive vision wafer is described in detail below by one embodiment.
In the embodiment of the present invention, the adaptive vision wafer is used for cutting and manufacturing the glasses lens for myopia with the distance of 125 degrees to 300 degrees and the distance of 25 degrees. From this requirement, the number N of types of the superlens units 20 required is 8. In this embodiment, the transparent substrate 10 is made of quartz glass, any single superlens unit 20, the nanostructure thereof is silicon nitride, the height of the nanostructure is 1200nm, the period is 400nm, the minimum line width is 60nm, and the types of the nanostructure include a nanorod, a hollow nanorod, and a nanopore.
In consideration of chromatic aberration correction, the maximum radius of chromatic aberration correction obtained based on the above formula (2) is 1.5mm according to the effective refractive index interval, the maximum degree and the height of the nanostructure. The arrangement of the superlens unit 20 is a regular quadrangle, arranged with an equal distribution probability. The size of the reticule area (exposure area) is 25mm x 32mm, and the number of superlenses placed in a single reticule area is about 88. The diameter of the quartz glass wafer is 150 mm. The design size of the spectacle lens was 40mm × 55mm, and the area A without the repeating region was obtained eff Is 800mm 2 So that an area A of a non-overlap region is obtained eff Is larger than the area A of a single superlens ML Multiplied by the full power superlens unit type N. The resulting superlens wafer and one dicing scheme are shown in FIG. 5; in fig. 5, the superlens unit 20 is illustrated as a circle, and the superlens units 20 of different types are illustrated in different patterns. 6 spectacle lenses can be cut out from the glasses, and the self-adaptive vision glasses can be obtained by taking any two spectacle lenses.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the technical solutions of the changes or replacements within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An adaptive vision wafer, comprising: a transparent substrate (10) and a plurality of types of superlens units (20);
the size of the transparent substrate (10) is not smaller than the larger of the size of the single exposure area and the size of the single eyeglass lens;
each super lens unit (20) corresponds to one focal length, and the number of the super lens units corresponding to each super lens unit (20) is multiple;
each superlens unit (20) is arranged on at least one side of the transparent substrate (10) in a randomly distributed manner.
2. The adaptive vision wafer of claim 1, wherein the random distribution comprises an equiprobable random distribution with the focal length of the superlens unit (20) as a random variable;
alternatively, the random distribution comprises: and the unequal probability random distribution takes the focal length or the power of the super lens unit (20) as a random variable, and the unequal probability random distribution is a convex random distribution.
3. The adaptive vision wafer according to claim 1, wherein the size of the transparent substrate (10) is not less than the sum of the sizes of m adaptive vision lenses, m ≧ 2;
or the size of the transparent substrate (10) is not less than the sum of the sizes of n single exposure areas, and n is more than or equal to 2.
4. The adaptive vision wafer according to claim 3, wherein in case the size of the transparent substrate (10) is not smaller than the sum of the sizes of n single exposure areas, all single exposure areas in the adaptive vision wafer are exposure areas determined by a full exposure mode.
5. The adaptive vision wafer of claim 1, wherein the size of a single eyeglass lens is c x d, and satisfies:
min(a,c)×min(b,d)＞A ML ×N；
wherein the size of the single exposure area is a x b, A ML Represents the area of a single superlens unit (20), and N represents the number of types of superlens units (20).
6. The adaptive vision wafer according to claim 1, wherein a plurality of the superlens units (20) are disposed in a close-packed form on at least one side of the transparent substrate (10).
7. The adaptive vision wafer of claim 6, wherein the superlens cells (20) are square, hexagonal or fan-ring shaped.
8. The adaptive vision wafer according to any one of claims 1 to 7, wherein the aperture of any of the superlens units (20) is not greater than a maximum aperture, the maximum aperture being determined without chromatic aberration based on the superlens unit (20) having the smallest focal length.
9. The adaptive vision wafer of claim 8, wherein the maximum aperture satisfies:
wherein, d max Representing said maximum caliber, Δ n eff Represents the equivalent refractive index interval corresponding to the super lens unit (20), h represents the height of the nano structure (201) in the super lens unit (20), f min Representing the minimum focal length.
10. An ophthalmic lens, wherein the ophthalmic lens is an ophthalmic lens cut out from the adaptive vision wafer of any one of claims 1-9.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11927769B2 (en) | 2022-03-31 | 2024-03-12 | Metalenz, Inc. | Polarization sorting metasurface microlens array device |
| US11978752B2 (en) | 2019-07-26 | 2024-05-07 | Metalenz, Inc. | Aperture-metasurface and hybrid refractive-metasurface imaging systems |
| US11988844B2 (en) | 2017-08-31 | 2024-05-21 | Metalenz, Inc. | Transmissive metasurface lens integration |
-
2022
- 2022-05-24 CN CN202221256777.0U patent/CN217467396U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11988844B2 (en) | 2017-08-31 | 2024-05-21 | Metalenz, Inc. | Transmissive metasurface lens integration |
| US11978752B2 (en) | 2019-07-26 | 2024-05-07 | Metalenz, Inc. | Aperture-metasurface and hybrid refractive-metasurface imaging systems |
| US11927769B2 (en) | 2022-03-31 | 2024-03-12 | Metalenz, Inc. | Polarization sorting metasurface microlens array device |
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