CN218995812U

CN218995812U - Spectacle lens, spectacles, head-mounted display device and vision training device

Info

Publication number: CN218995812U
Application number: CN202122996607.8U
Authority: CN
Inventors: 任晓峰; 许鹏飞; 崔焱
Original assignee: Shenzhen Shengda Tongze Technology Co ltd
Current assignee: Shenzhen Shengda Tongze Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-05-09
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses an eyeglass, glasses, a head-mounted display device and a vision training device, and belongs to the technical field of optics. The ophthalmic lens includes: the lens comprises a matrix and a plurality of defocus adjusting parts, wherein the matrix comprises a refraction adjusting structure, the refraction adjusting structure enables the refractive power distribution of the lens to be irregularly arranged, and at least part of the defocus adjusting parts are uniformly distributed on or in the matrix. The utility model can avoid the fact that the actual defocus amount of the defocus adjusting part is not consistent with the designed defocus amount after the eyeglass is coated, and avoid the situations of image jump, dizziness and the like after the eyeglass is worn by a user, thereby improving the defocus adjusting effect of the eyeglass and the wearing experience of the user.

Description

Spectacle lens, spectacles, head-mounted display device and vision training device

Technical Field

The utility model belongs to the technical field of optics, and particularly relates to an ophthalmic lens, a head-mounted display device and vision training equipment.

Background

In the related art, the peripheral defocus spectacle lens can slow down the increase of the eye axis and has the effect of inhibiting the development of myopia.

Most of the existing defocusing structures are protruding points formed on the surface of the spectacle lens, as various film layers exist on the surface of the spectacle lens, the film coating on the protruding points can change the external structure of the protruding points, so that the actual defocusing amount of the protruding points deviates from a design value, and the arrangement mode of the defocusing structures of the existing peripheral defocusing spectacle lens is unreasonable, so that the problems of poor light transmittance, blurred vision, image jump, dizziness and the like occur when a user uses the spectacle lens.

Disclosure of Invention

The utility model mainly aims to provide an eyeglass, glasses, a head-mounted display device and a vision training device, and aims to solve the technical problems that after a peripheral defocusing eyeglass is coated, deviation occurs between the actual defocusing amount and the designed defocusing amount of a defocusing adjusting structure, light transmittance is poor, a field of view is fuzzy, an image is jumped and dizziness are caused, and the reliable peripheral defocusing amount is provided.

To achieve the above object, in a first aspect, the present utility model provides an ophthalmic lens, including:

a base including a refractive adjustment structure such that the refractive power distribution of the ophthalmic lens is irregularly arranged; and

the plurality of defocusing adjusting parts are at least partially uniformly distributed on or in the matrix.

Optionally, the uniform distribution is:

the plurality of defocusing adjusting parts enclose at least one defocusing adjusting area, the total number of the defocusing adjusting parts in the defocusing adjusting area is N, and the nearest neighbor distance of any defocusing adjusting part N is D _n N is less than or equal to N, and the variation coefficient of the defocusing adjusting part in the defocusing adjusting area is c _v ，

c _v The method meets the following conditions:

wherein σ is the nearest neighborDistance D _n Is set in the standard deviation of (2),

is the average value of the nearest neighbor distances of the defocus adjusting portion,

optionally, the substrate comprises:

a central portion having a circular, elliptical, polygonal or scalloped profile on the optical surface of the substrate; and

and the annular part is annularly arranged outside the central part.

Optionally, the refractive adjustment structure comprises: a surface-type adjusting structure, and/or a refractive index adjusting structure; the surface type adjusting structure is characterized in that at least one optical surface type of the matrix is a free curved surface, and the refractive index adjusting structure is a refractive index adjusting structure made of a material with a refractive index different from that of the rest part of the matrix; the defocus adjustment portions are protrusions that are independent of each other and/or are made of a material having the same or different refractive index from the refractive adjustment structure.

Optionally, the refractive adjustment structure is provided to the annular portion.

Optionally, the area of the central portion on the optical surface of the substrate is 0 to 36 pi mm ² 。

Optionally, the at least one optical surface of the central portion is provided with a planar, spherical, aspherical or toric profile.

Optionally, the at least one defocus adjustment region has an area of 81 pi mm or less ² 。

Optionally, the ratio of the projected total area of the defocus adjustment portion in the at least one defocus adjustment region to the total area of the at least one defocus adjustment region is from 15% to 65%.

Optionally, the defocus adjustment portion comprises a positive refractive structure, a negative refractive structure, a graded refractive index structure, a birefringent structure, a diffractive structure, or a binary optical structure.

Optionally, at least one optical surface of the ophthalmic lens comprises at least one of an anti-reflection film layer, a blue light-preventing film layer, an ultraviolet-preventing film layer, a hardening film layer, an anti-fog film layer, or an anti-fouling film layer.

In a second aspect, the utility model also proposes an ophthalmic lens comprising an ophthalmic lens as described above.

In a third aspect, the present utility model also proposes a head-mounted display device comprising:

ophthalmic lenses as described above; or (b)

Glasses as described above.

In a fourth aspect, the present utility model also provides a vision training apparatus comprising:

ophthalmic lenses as described above; or (b)

Glasses as described above.

According to the technical scheme, the spectacle lens can provide reliable peripheral defocus amount through the diopter adjusting structure arranged on the base body, so that the defocus adjusting effect of the spectacle lens is improved; the defocusing adjusting parts can be arranged inside the matrix, the external structure of the defocusing adjusting parts is prevented from being changed by the surface coating of the matrix, the actual defocusing amount is caused to deviate from the designed defocusing amount, the uniform arrangement of the defocusing adjusting parts on the matrix and the arrangement of the area occupying ratio are realized, the arrangement mode of the defocusing adjusting parts is optimized, the situations of jumping, dizziness and the like after the user wears the glasses are avoided, the light transmittance of the glasses is improved, and the wearing experience of the user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of an ophthalmic lens of the present utility model;

FIG. 2 is a schematic view of a substrate structure of an embodiment of an ophthalmic lens of the present utility model;

FIG. 3 is a schematic representation of the power modulation of a front-eye-worn ophthalmic lens of the present utility model;

FIG. 4 is a schematic representation of the power adaptation control of a front-eye-worn ophthalmic lens of the present utility model;

FIG. 5 is a schematic diagram of the progressive myopic defocus fitting control after emmetropic spectacle lens wearing of the present utility model;

FIG. 6 is a schematic view of a central portion power profile of an embodiment of an ophthalmic lens of the present utility model;

FIG. 7 is a schematic view of an embodiment of an ophthalmic lens with an elliptical central portion power profile;

FIG. 8 is a schematic illustration of a center portion power profile of an embodiment of an ophthalmic lens of the present utility model in a shell shape;

FIG. 9 is a contour schematic of the power profile of the central portion of an embodiment of an ophthalmic lens of the present utility model;

FIG. 10 is a schematic view of free-form surfaces on two sides of a substrate according to an embodiment of the present utility model;

FIG. 11 is a schematic view of a defocus position of a central portion of a base of an embodiment of an ophthalmic lens of the present utility model;

FIG. 12 is a schematic view of an arrangement of defocus adjustment portions of a first defocus region and a second defocus region of an embodiment of an ophthalmic lens of the present utility model;

FIG. 13 is a schematic view of a defocus adjustment portion of an embodiment of the present utility model wherein the defocus adjustment portion is located on one side surface of the base;

FIG. 14 is a schematic view of a defocus adjustment portion of an embodiment of an ophthalmic lens of the present utility model, wherein the defocus adjustment portion is located inside a base;

fig. 15 is a front view of an ophthalmic lens in which the defocus adjustment portion of an embodiment of the present utility model is circular.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Matrix body	101	Center portion
102	Annular part	200	Diopter adjusting structure
				300	Defocus adjusting part	301	Defocus adjustment zone
301A	First regulatory region	301B	Second regulatory region
				401	Surface type adjusting structure	402	Refractive index adjusting structure

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the related art, clinical vision correction is mainly a vision correction scheme for the central macular region of the eye. However, according to the structure of the eye, the positions in which the human eye visual cells are distributed include the peripheral region of the fundus macula in addition to the central macula region, and thus, the vision exists not only in the central macula of the eye but also in other fundus regions having the visual cells. Moreover, each individual can also present a complex refractive distribution due to the complex refractive matrix and the ocular fundus morphology from person to person, depending on the distribution of the ocular cells at different locations of the ocular fundus. According to peripheral defocus theory, peripheral retinal hyperopic defocus is the main cause of promotion of myopia occurrence and increasing myopic power. The peripheral myopia defocus can slow down the growth of the eye axis, and has the effect of inhibiting the development of myopia. Based on this theory, peripheral myopic defocus frame lenses and defocus contact lenses are emerging on the market, aimed at providing additional peripheral optical power through the peripheral defocus structure to move the peripheral focus position in the direction of the object.

However, due to unreasonable arrangement of the peripheral defocusing structure of the conventional spectacle lens, the problems of poor light transmittance, blurred vision, jumping images, dizziness and the like appear after the user wears the spectacle lens, and discomfort is caused to the user.

To this end, the present embodiment provides an ophthalmic lens.

Referring to fig. 1 and 2, in the present embodiment, an ophthalmic lens includes: a base body 100, said base body 100 comprising a refractive adjustment structure 200 such that the refractive power distribution of the ophthalmic lens is irregularly arranged, in particular non-axisymmetric, non-point symmetric or non-rotationally symmetric; and

the plurality of defocus adjustment portions 300, at least some of the plurality of defocus adjustment portions 300 are uniformly distributed on the base 100 or in the base 100.

As will be readily appreciated, an emmetropic eye refers to a refractive condition in which parallel rays from a distant object are focused on the macula of the non-accommodating eye. A non-emmetropic eye refers to a refractive condition in which parallel rays from a distant object cannot be focused on the macula of the retina of the non-accommodating eye, including myopia and hyperopia. The degree of refraction of incident light in the absence of accommodation can be noted as D ₁ The optical power required for parallel light to focus on the macula retinae can be noted as D ₀ The refractive power deviation DeltaD of the two ₁ ＝D ₀ –D ₁ May be defined as an initial ocular refraction. The concept of initial ocular refraction is extended from the macular refractive power deviation value to the entire retinal area with vision cells, with the initial ocular refraction at multiple different locations of the retina constituting an initial ocular refraction profile. The initial ocular refractive profile of each individual eye may be measured directly by a refractive topography device or indirectly by a combination of measurement devices such as refractometers, aberrometers, etc. After obtaining an initial ocular refractive power distribution of each individual, a base refractive power distribution calculated based on the initial ocular refractive power distribution value. Specifically, the initial eye refractive distribution includes a plurality of numerical elements, each numerical element, namely, the initial eye refractive distribution numerical value is obtained one by one, then the matrix refractive power numerical value of the same coordinate position point is calculated according to a rule function, and the matrix refractive power numerical value of each position point is formed into the refractive power distribution of the matrix according to the coordinate position relation. Because the initial refractive distribution of the human eye shows irregularity, the optical power of the spectacle lens is not axisymmetric, not point symmetric or not rotationally symmetric correspondingly.

Fig. 3 is a schematic view showing the regulation of the back refractive power of a front-view spectacle lens with refractive power D ₂ After optical power modulation of the base 100, the total optical power of the initial ocular optical power and the base optical power is D ₁ +D ₂ The refractive power D of the matrix 100 here ₂ For initial eye refractive power D ₁ Constitutes refractive compensation, then the actual total refractive power after being accommodated by the ophthalmic lens will be parallel toThe total refractive power deviation Δd required for focusing light on retina ₂ ＝D ₀ –(D ₁ +D ₂ ) Defined as post-regulatory refraction. While the refractive power D of the matrix for controlling the initial eye refractive power ₂ Defined as the base refractive power. D in the present embodiment ₂ The different positions of the ophthalmic lens may be differentiated values. Further, when calculating the value of the base refractive power based on the value of the initial ophthalmic refractive power distribution, it is necessary to calculate the value by considering factors such as the current user's lens fitting requirement, related requirements regarding vision correction, control, prevention, the lens wearing effect desired by the user, or the processing capability of the ophthalmic lens processing apparatus. I.e. the case of adaptation includes: the base 100 is made to focus all objects at infinity in a certain angle of view on the retina, the effect after fitting is as shown in fig. 4, and when the user wears the glasses, the overall diopter distribution of the naked eye plus the glasses lens reaches the ideal distribution; or it is desired to achieve progressive myopic defocus in the peripheral field of view through the substrate 100, the effect after adaptation being as shown in fig. 5; alternatively, it is desirable to achieve a constant add refraction through the entire field of view through the substrate 100; alternatively, considering small eye rotation, or positional disturbance when wearing an ophthalmic lens, a portion of the area may be left in the center of the ophthalmic lens with conventional macular vision correction, and the compensation for focusing on the retina may be used with the periphery, and a regular function may be used:

i.e. at r ₀ Inside the circle of radius, refractive correction of the macula is used, except that objects at infinity are required to focus on the retina without accommodation.

Specifically, the base 100 is a main body structure of an ophthalmic lens. The base 100 is provided with a refractive adjustment structure 200 for providing a reliable peripheral defocus amount, the refractive adjustment structure 200 being used to adapt the refractive power distribution of the ophthalmic lens to an initial ophthalmic refractive distribution consisting of an initial ophthalmic refraction of a plurality of different locations of the retina.

Referring to fig. 2, in one embodiment, the substrate 100 includes: a central portion 101 and at least one annular portion 102, said annular portion 102 being annularly provided radially outside said central portion 101;

wherein at least one optical surface of the annular portion 102 is configured as a free-form surface to form the refractive adjustment structure 200.

Fig. 2 is a schematic diagram showing a specific structure of an ophthalmic lens. The central portion 101 and the annular portion 102 are each three-dimensional entities having a certain area and thickness.

The central portion 101 is used to meet conventional prescription requirements, and includes a first optical power that may be equal to 0, or greater than 0 or less than 0, and is suitable for normal eye when the optical power is equal to 0, for far vision correction when greater than 0, and for near vision correction when less than 0.

Further, the profile of the central portion 101 is circular, oval, polygonal or scalloped.

Specifically, the profile of the central portion 101 reflects the power distribution of the central portion 101. As shown in fig. 6 to 8, the refractive power distribution of the central portion 101 is schematically shown. The refractive powers at different positions of the central portion 101 are the same value, and the profile of the refractive power distribution is circular, as shown in fig. 6; alternatively, the profile of the power profile is elliptical, as shown in fig. 7; the profile of the power distribution may also be scalloped, as shown in fig. 8.

Fig. 9 is a schematic view of another power distribution of the central portion 101. Fig. 9 illustrates that the contour of the refractive power distribution of the ophthalmic lens exhibits an irregular course, the refractive power distribution of both the central portion 101 and the annular portion 102 being irregularly arranged.

Referring to fig. 1 and 10, in one embodiment, the refractive adjustment structure 200 comprises: a surface-type adjusting structure 401, and/or a refractive index adjusting structure 402, the surface-type adjusting structure 401 being at least one optical surface of the substrate 100 being a free-form surface; the refractive index adjustment structure 402 is a material of refractive index different from that of the rest of the matrix 100, such as a graded index material or a radiation curable material, for example, for the refractive index adjustment structure 200.

As an option for this embodiment, the refractive adjustment structure 200 may be a surface-type adjustment structure 401: at least one side optical surface of the base 100 is provided as a free-form surface. Alternatively to this embodiment, when the refractive adjustment structure 200 is the refractive index adjustment structure 402, it may be that: the base body 100 also has a refractive index adjustment structure 200 provided thereon with a refractive index adjustment structure 402. As a further alternative to this embodiment, the refractive adjustment structure 200 may be, when it is a surface adjustment structure 401 and a refractive index adjustment structure 402 at the same time: at least one side optical surface of the base body 100 is configured as a free-form surface and the base body 100 is further provided with a refractive index adjustment structure 200 of a refractive index adjustment structure 402, as shown in fig. 10. The shaded portion in fig. 10 represents a refractive index adjustment structure employing a refractive index adjustment structure 402, which is disposed inside the base body.

The graded index structure can be realized by adopting the existing vapor deposition or ion permeation technology; the radiation curing material is specifically a material with refractive index changed after being irradiated by electron radiation, optical radiation, ion radiation and the like.

Finally, the refractive power distribution of the spectacle lens is determined by the surface shape of both surfaces of the base body 100 and the refractive index of the material.

In one embodiment, the area of the central portion 101 on the optical surface of the substrate 100 is 0 to 36 pi mm ² It is envisioned that when the area is 0, the entire surface profile of at least one optical surface of the substrate is free-form. As shown in FIGS. 1 and 2, in the case where the area of the central portion 101 on the optical surface of the substrate is larger than 0, it is preferably 9 pi to 36 pi mm ² More preferably 16 pi to 36 pi mm ² 。

Referring to fig. 1, in one embodiment, the refractive adjustment structure 200 is disposed on the annular portion 102.

The at least one optical surface of annular portion 102 is free-form and includes a plurality of different power values having a power profile that is compatible with the initial ophthalmic power profile, as shown in fig. 1. Both sides of the annular portion 102 may also be machined to be free-form surfaces as desired, which is not limited in this embodiment.

In an embodiment, the at least one optical surface of the central portion 101 is provided with a planar, spherical, aspherical or toric profile. By arranging the central part on the matrix, the lens matching error generated by eye rotation, head movement and the like in the lens matching process can be contained, and the lens matching precision is improved.

Referring to fig. 12, a plurality of defocus adjustment portions 300 are further provided on the spectacle lens to form additional focusing different from that of the base body 100, enhancing the near-sighted defocus signal stimulus. At least a portion of the defocus adjustment portions 300 are uniformly disposed on the base 100, so that when the human eyes move or the head moves, the change of light entering the human eyes does not mutate, thereby avoiding phenomena such as jumping and dizziness, and improving wearing comfort.

It is understood that at least some of the defocus adjustment portions 300 are uniformly distributed on the substrate 100, and some of the defocus adjustment portions 300 may be uniformly disposed on the substrate 100, and some of the defocus adjustment portions may be unevenly distributed, for example, disposed in a random arrangement, or disposed in a radial arrangement, or disposed in a plurality of annular arrangements, etc., as shown in fig. 12. Alternatively, at least a part of the defocus adjustment portions 300 may be uniformly disposed on the base 100, and all of the defocus adjustment portions 300 may be uniformly distributed on the base.

In one embodiment, the uniform distribution is:

the plurality of defocus adjustment portions 300 enclose at least one defocus adjustment region 301, the total number of defocus adjustment portions 300 in the defocus adjustment region 301 is N, the nearest distance of any one of the defocus adjustment portions N is Dn, N is less than or equal to N, and the coefficient of variation of the defocus adjustment portion 300 in the defocus adjustment region 301 is c _v ，

c _v The method meets the following conditions:

wherein sigma is the standard deviation of the nearest neighbor distance Dn,

specifically, the nth defocus adjustment portion 300 on the base 100 may be denoted as P _n N=1, 2,3 … … N, N is the total number of defocus adjustment portions 300 that are uniformly arranged, for any one P of the defocus adjustment portions 300 that are uniformly arranged _n Which is separated from other defocus adjusting part P _m The distance of (2) is denoted as d _nm ，P _n Is D _n ，

Wherein, the liquid crystal display device comprises a liquid crystal display device,

/>

average value of nearest neighbor distances of the defocus-adjusting portions 300 arranged uniformly

Coefficient of variation of distribution of defocus adjustment portion 300 in defocus adjustment region 301

Wherein σ is the nearest distance D of each defocus adjustment portion 300 in the defocus adjustment portions 300 which are uniformly arranged _n Standard deviation of (2).

When c _v When 15% or less, the plurality of defocusing adjusting parts of the spectacle lens provided by the embodiment are uniformly distributed, so that when the human eyes move or the head moves, the change of light rays entering the human eyes does not generate mutation, thereby avoiding the phenomena such as jumping, dizziness and the like and improving wearing comfort.

As shown in fig. 11, the at least one defocus adjustment zone 301 may overlap the central portion 101.

Referring to fig. 12 to 13, at least one optical surface of the substrate 100 has at least one defocus adjustment region 301, the defocus adjustment portion 300 is disposed in the defocus adjustment region 301, and the defocus adjustment portion 300 protrudes from the optical surface.

The at least one defocus adjustment zone 301 comprises a first adjustment zone 301A and a second adjustment zone 301B, the second adjustment zone 301B being located radially outside the first adjustment zone 301A, at least the first adjustment zone 301A of the first and

second adjustment zones

301A, 301B being provided with the defocus adjustment 300; wherein, the defocus adjustment portions 300 are uniformly arranged in the first adjustment region 301A.

Specifically, the substrate 100 includes a first adjustment region 301A and a second adjustment region 301B, wherein the protrusions in the first adjustment region 301A, that is, the defocus adjustment portions 300, are uniformly arranged, and the protrusions in the second adjustment region 301B, that is, the defocus adjustment portions 300, may be uniformly arranged, or may be arbitrarily arranged.

Thus, in the present embodiment, the defocus adjustment portion 300 in the first adjustment region 301A of at least the inner side of the optical surface of the ophthalmic lens is uniformly disposed so that the variation of light entering the human eye through the middle of the base body 100 does not occur abrupt.

Wherein the area of the first adjusting region 301A is less than or equal to 81 pi mm ² Preferably 9 pi mm ² ～64πmm ² More preferably 16 pi mm ² ～64πmm ² 。

It will be appreciated that the optical surface of the substrate 100 further includes a non-defocus region on which the defocus adjustment portion 300 is not disposed.

It should be noted that the defocus adjusting portion 300 may be disposed on the front surface or the rear surface of the base 100, or may be disposed on the front surface or the rear surface at the same time, which is not limited in this embodiment.

In one embodiment, referring to fig. 13 and 14, the defocus adjustment portion 300 is a protrusion formed on the base and/or is disposed inside the base.

Specifically, the defocus adjusting portion 300 may be configured as protrusions in the defocus adjusting region 301 on the optical surface of the substrate 100 side, and the protrusions are uniformly distributed as shown in fig. 13, so that when the human eye moves or the head moves, the change of light entering the human eye does not generate abrupt change, thereby avoiding phenomena such as jumping, dizziness, and the like, and improving wearing comfort.

By disposing the defocus adjustment portion 300 inside the base 100 as shown in fig. 14, it is possible to avoid the film layer from changing the external structure of the defocus adjustment portion 300 after the lens is coated, thereby affecting the optical performance of the defocus adjustment portion 300, as compared with the case where the defocus adjustment portion 300 is configured as a projection provided on the surface of the base 100.

When the defocus adjustment portion 300 is disposed inside the base body 100, the defocus adjustment portion 300 and the base body 100 may be integrally formed.

Or the ophthalmic lens further comprises:

and a defocus adjusting layer provided with a plurality of defocus adjusting portions 300, the defocus adjusting layer being fixedly provided on one side optical surface of the base 100 or the defocus adjusting layer being provided in the base 100.

Specifically, the protrusions may be formed integrally with the base 100. The defocus adjustment portion 300 may be obtained by forming a film layer having a plurality of protrusions by an embossing method, and then bonding the film layer to the base 100 by bonding or curing. In this embodiment, the film layer may be a hardened film.

Alternatively, a membrane having a plurality of defocus adjustment portions 300 may be formed first, and then the membrane may be bonded to the base 100 by bonding, clamping, or the like to improve flexibility of the lens assembly and reduce cost of the lens assembly.

By disposing the defocus adjustment portion 300 inside the base 100, it is possible to avoid the film layer from changing the external structure of the defocus adjustment portion 300 after the lens is coated, thereby affecting the optical performance of the defocus adjustment portion 300. Specifically, the plurality of defocus adjustment portions 300 may be implemented using a graded index material, a radiation curable material, or the like. The graded index material is realized by adopting the existing vapor deposition, ion exchange or ion permeation technologies and the like; the radiation curing material is specifically a material with refractive index changed after being irradiated by electron radiation, optical radiation, ion radiation and the like.

Alternatively, as another option of the present embodiment, the defocus adjustment portion 300 is provided as a self-focusing microlens structure. Referring to fig. 14, a plurality of defocus-adjusting portions 300 may employ self-focusing microlenses. In the figure, the optical axes of the self-focusing microlenses are parallel to the optical axes of the ophthalmic lenses, which is not limited to this, and the optical axes of the self-focusing microlenses and the optical axes of the ophthalmic lenses may have a certain angle, so that the light is focused at a certain point or a plurality of different positions in a certain area, and the arrangement is specifically performed as required.

In an embodiment, the ratio of the projected total area of the defocus adjustment portion 300 in the at least one defocus adjustment region 301 to the total area of the at least one defocus adjustment region 301 is 15% to 65%.

Specifically, the optical projection shape of the defocus adjustment portion 300 on the optical surface is a polygon, a circle, an ellipse, or a fan. The optical projection of the projection onto the optical surface is circular, and the diameter 2r is 0.5-2.5 mm, preferably 0.8-2.0 mm. The refractive power of the bulge is between 1D and 5D.

The first adjusting area 301A is preferably annular with the optical center of the spectacle lens as the center, and has an inner diameter of 8mm and an outer diameter of 18mm.

It should be understood that the first adjustment region 301A may be disposed in a non-central symmetry and non-axial symmetry instead of the optical center of the lens.

In one embodiment, the defocus adjustment portion 300 has a structure including a positive refractive structure, a negative refractive structure, a graded refractive structure, a birefringent structure, a diffractive structure, or a binary optical structure. For example, the defocus adjustment portion 300 has a positive refractive structure, the defocus adjustment portion 300 has a negative refractive structure, the defocus adjustment portion 300 has a graded refractive index structure, the defocus adjustment portion 300 has a birefringent structure, the defocus adjustment portion 300 has a diffraction structure, or the defocus adjustment portion 300 has a binary optical structure.

In one embodiment, the at least one defocus adjustment region has an area of 81 pi mm or less ² Preferably 9 pi mm ² ～64πmm ² More preferably 16 pi mm ² ～64πmm ² 。

Referring to fig. 15, alternatively, the defocus adjustment region 301 is formed in a ring shape, which is a circular ring, an elliptical ring, a polygonal ring, a scalloped shape, or the like. The defocus adjustment portion 300 is distributed in the entire ring.

In an embodiment, the at least one optical surface of the ophthalmic lens comprises at least one of an anti-reflection film layer, a blue light preventing film layer, an ultraviolet preventing film layer, a hardening film layer, an anti-fog film layer, or an anti-fouling film layer.

At least one optical surface of the ophthalmic lens has an antireflection film for improving the optical transmittance of the ophthalmic lens and improving the clarity of the visual object.

Or at least one optical surface of the spectacle lens is provided with a blue light preventing film layer and/or an ultraviolet preventing film layer, which are used for reflecting blue light and ultraviolet rays in external light rays, preventing the blue light and the ultraviolet rays from entering eyes and protecting vision.

Alternatively, at least one optical surface of the ophthalmic lens has an anti-fog film layer, which may be a hydrophilic film layer.

Alternatively, at least one optical surface of the ophthalmic lens has an anti-fouling film layer, which may be a hydrophobic oleophobic film layer.

Alternatively, at least one optical surface of the ophthalmic lens has a hardened film layer, and/or an impact resistant film layer to increase the scratch resistance of the ophthalmic lens surface, as well as the strength of the ophthalmic lens, thereby extending the useful life of the ophthalmic lens.

It is understood that the spectacle lens material includes an ultraviolet absorber for absorbing ultraviolet rays contained in natural light, and plays a role in protecting vision.

The utility model also proposes a pair of spectacles comprising an ophthalmic lens according to any of the embodiments described above. The specific structure of the spectacle lens refers to the above embodiments, and since the spectacle lens adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and the detailed description is omitted herein.

The utility model also proposes a head-mounted display device comprising an ophthalmic lens as described in any of the embodiments above, or an ophthalmic lens as described above. The specific structures of the glasses lens and the glasses refer to the above embodiments, and since the head-mounted display device adopts all the technical solutions of all the embodiments, at least the technical solutions of the embodiments have all the beneficial effects, and are not described in detail herein.

The utility model also proposes a vision training device comprising an ophthalmic lens as described in any one of the embodiments above, or an ophthalmic lens as described above. The specific structures of the spectacle lenses and the spectacles refer to the above embodiments, and since the vision training device adopts all the technical solutions of all the embodiments, at least the technical solutions of the embodiments have all the beneficial effects, and are not repeated here.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. An ophthalmic lens, comprising:

the defocusing adjusting parts are at least partially uniformly distributed on or in the substrate;

when at least part of the defocus adjustment portions are uniformly distributed on the substrate, at least one optical surface of the spectacle lens comprises at least one of an antireflection film layer, a blue light preventing film layer, an ultraviolet preventing film layer, a hardening film layer, an antifogging film layer or an antifouling film layer.

2. The ophthalmic lens of claim 1 wherein said uniform distribution is:

the plurality of defocusing adjusting parts are enclosed intoAt least one defocusing adjusting region, wherein the total number of defocusing adjusting parts in the defocusing adjusting region is N, and the nearest neighbor distance of any defocusing adjusting part N is D _n N is less than or equal to N, and the variation coefficient of the defocusing adjusting part in the defocusing adjusting area is c _v ，

c _v The method meets the following conditions:

wherein σ is the nearest neighbor distance D _n Is set in the standard deviation of (2),

3. the ophthalmic lens of claim 1 wherein said substrate comprises:

a central portion; and

at least one annular portion disposed annularly outside the central portion.

4. The ophthalmic lens of claim 1 wherein the refractive adjustment structure comprises: a surface-type adjusting structure, and/or a refractive index adjusting structure; the surface type adjusting structure is characterized in that at least one optical surface type of the matrix is a free curved surface, and the refractive index adjusting structure is a refractive index adjusting structure made of a material with a refractive index different from that of the rest part of the matrix;

the defocus adjustment portions are protrusions that are independent of each other and/or are made of a material having the same or different refractive index from the refractive adjustment structure.

5. The ophthalmic lens of claim 3 wherein the refractive adjustment structure is disposed on the annular portion.

6. An ophthalmic lens according to claim 3, wherein the area of the central portion at the optical surface of the base is 0-36 pi mm ² 。

7. The ophthalmic lens of claim 3 wherein the at least one optical surface of the central portion is configured in a planar, spherical, aspherical or toric configuration.

8. The ophthalmic lens of claim 2 wherein the at least one defocus adjustment zone has an area of 81 pi mm or less ² 。

9. The ophthalmic lens of claim 2 wherein the ratio of the projected total area of the defocus adjustment in the at least one defocus adjustment zone on the optical surface of the ophthalmic lens to the total area of the at least one defocus adjustment zone is 15% to 65%.

10. The ophthalmic lens of claim 1 wherein the defocus adjustment comprises a positive refractive structure, a negative refractive structure, a graded refractive structure, a birefringent structure, a diffractive structure, or a binary optical structure.

11. The ophthalmic lens of claim 1 wherein at least one optical surface of the ophthalmic lens comprises at least one of an anti-reflection film layer, a blue light-preventing film layer, an ultraviolet-preventing film layer, a hardening film layer, an anti-fog film layer, or an anti-fouling film layer when at least a portion of the plurality of defocus adjustment portions are uniformly distributed within the matrix.

12. Spectacles, characterized by comprising an ophthalmic lens according to any one of claims 1 to 11.

13. A head-mounted display device, comprising:

the ophthalmic lens of any one of claims 1 to 11; or the glasses of claim 12.

14. A vision training apparatus, comprising: the ophthalmic lens of any one of claims 1 to 11; or (b)

The eyewear of claim 12.