CN219349294U - Point chain defocusing lens and glasses - Google Patents

Abstract

The utility model provides a point chain defocusing lens and glasses, and relates to the technical field of defocusing lenses, wherein the point chain defocusing lens comprises a lens body, an optical correction area, a main defocusing area and an auxiliary defocusing area are sequentially arranged on the lens body from inside to outside, the auxiliary defocusing area comprises a plurality of first arc defocusing areas, the central lines of all the first arc defocusing areas are circumferentially and uniformly distributed on the outer side of the main defocusing area, and a plurality of unit defocusing parts are sequentially arranged along the central lines of the first arc defocusing areas; the glasses comprise the point chain defocused lenses; the main defocusing area and the auxiliary defocusing area are matched with each other, the reasonable defocusing area is provided, sufficient defocusing amount is provided, the optical phenomenon of imaging advance can be effectively manufactured, the inhibiting effect of vision deepening is obvious, the unit defocusing part of the auxiliary defocusing area adopts an arc distribution mode similar to a star-link structure, the defocusing point is sparse and dense, the reasonable bright vision area is provided, the bright vision area is sufficient, the visual objects are not deformed, and the wearing is clear and comfortable.

Description

Point chain defocusing lens and glasses

Technical Field

The utility model relates to the technical field of defocused lenses, in particular to a point chain defocused lens and glasses.

Background

After the far vision and defocus imaging is performed on the retina, the imaging is delayed, the eyeball grows to a position behind the retina, and the eye axis grows, so that the refractive state of the eyeball is developed towards myopia; myopia is formed by defocusing, namely imaging before retina, imaging is advanced, eyeballs can grow to the position in front of retina, the eye axis is shortened, and the refractive state of the eyeballs is developed to hyperopia.

The existing myopia defocusing lens adopts the myopia defocusing principle, a plurality of defocusing points with corresponding structures are arranged in the area of the lens close to the center, and in the use process, light rays penetrate through the defocusing points and are projected to the front of retina to form myopia defocusing, so that the development of eye axis growth is delayed, and the effect of delaying myopia deepening is achieved; the existing myopia defocusing lens is only provided with a defocusing point in a region close to the central position, a large blank region exists outside the defocusing region, imaging hysteresis exists in the region, eye axis growth can be stimulated, vision deepens, the defocusing point is concentrated in a position close to the central region, the defocusing point is too small, a bright vision region is too small, distortion and deformation of a vision object are caused, and wearing comfort is affected.

Disclosure of Invention

The utility model aims to provide a point chain defocusing lens and glasses, which are used for solving the technical problems of poor effect of inhibiting deepening of vision and uncomfortable wearing of the existing defocusing lens in the prior art; the preferred technical scheme of the technical schemes provided by the utility model has a plurality of technical effects; details are set forth below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a point chain defocusing lens, which comprises a lens body, wherein an optical correction area, a main defocusing area and an auxiliary defocusing area are sequentially arranged on the lens body from inside to outside, wherein: the auxiliary defocusing area comprises a plurality of first arc defocusing areas, the central lines of all the first arc defocusing areas are circumferentially and uniformly distributed on the outer side of the main defocusing area, and the first arc defocusing areas are sequentially provided with a plurality of unit defocusing parts along the central lines of the first arc defocusing areas.

The midline is a virtual line, which is not a substantially existing line.

Preferably, the auxiliary defocusing area comprises a plurality of second arc defocusing areas, the central lines of all the second arc defocusing areas are circumferentially and uniformly distributed on the outer side of the main defocusing area, and the second arc defocusing areas are sequentially provided with a plurality of unit defocusing parts along the central lines of the second arc defocusing areas.

Preferably, the central line of the first arc-shaped defocusing band is bent in a clockwise direction, and the central line of the second arc-shaped defocusing band is bent in a counterclockwise direction; the unit defocusing portion is arranged at a position where the central line of the first arc defocusing band intersects with the central line of the second arc defocusing band.

Preferably, the central line of the first arc-shaped defocused belt is arranged as an arc; the midline of the second arc defocusing belt is arranged as an arc.

Preferably, the defocus amount of the unit defocus portion of the annular defocus belt increases gradually along the inside-to-outside direction; the unit defocusing parts of the first arc defocusing belt and the second arc defocusing belt are the same as the defocusing degree of the unit defocusing part of the annular defocusing belt at the outermost layer.

Preferably, the main defocusing area comprises a plurality of annular defocusing belts, and all the annular defocusing belts are sleeved in sequence along the direction from inside to outside; the annular defocusing zone comprises a plurality of unit defocusing parts which are circumferentially and uniformly arranged.

Preferably, the lens body is provided with a scale auxiliary area, and the scale auxiliary area is arranged at the outer side of the auxiliary defocus area; the scale auxiliary area comprises a plurality of scale marks, and all the scale marks are circumferentially and uniformly arranged at the edge part of the lens body.

Preferably, the lens body is provided as a concave lens and the unit defocus portion is provided as a convex.

Preferably, the lens body is provided as a convex lens, and the unit defocusing portion is provided as a groove or a protrusion.

The utility model provides glasses comprising any one of the point chain defocusing lenses.

The point chain defocusing lens and the glasses provided by the utility model have at least the following beneficial effects:

the point chain defocusing lens comprises a lens body, wherein an optical correction area, a main defocusing area and an auxiliary defocusing area are sequentially arranged on the lens body from inside to outside, the optical correction area is used for correcting eyesight, the main defocusing area and the auxiliary defocusing area are mutually matched, an imaging advanced optical principle is manufactured, and vision deepening is effectively restrained.

The auxiliary defocusing area comprises a plurality of first arc defocusing areas, the central lines of all the first arc defocusing areas are circumferentially and uniformly distributed on the outer side of the main defocusing area, the first arc defocusing areas are sequentially provided with a plurality of unit defocusing parts along the central lines of the first arc defocusing areas, on one hand, the arrangement of the auxiliary defocusing areas can effectively block blank imaging hysteresis of the outer sides of the defocusing areas of the existing defocusing lenses, on the other hand, the unit defocusing parts are distributed in an arc shape similar to a star-link structure, the density is high, the reasonable bright vision area is provided, the bright vision area is sufficient, objects are not deformed, the wearing is clear and comfortable, meanwhile, the auxiliary defocusing areas are matched with the main defocusing areas, the good defocusing effect is achieved, and the vision inhibition deepening effect is remarkable.

The main defocusing area and the auxiliary defocusing area are matched with each other, the reasonable defocusing area is provided, sufficient defocusing amount is provided, the optical phenomenon of imaging advance can be effectively manufactured, the suppression effect of vision deepening is obvious, the auxiliary defocusing area adopts an arc distribution mode similar to a star-link structure, on the basis of guaranteeing the defocusing effect, the unit defocusing part is dense and has a reasonable bright visual area, the bright visual area is sufficient, the vision object is not deformed, and the wearing is clear and comfortable.

Drawings

In order to more clearly illustrate the embodiments of the 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, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model including auxiliary lines;

FIG. 3 is an enlarged view of section A of the present utility model;

FIG. 4 is an enlarged view of the portion B of the present utility model;

FIG. 5 is a schematic view of the rays of a myopic defocus lens of the present utility model;

fig. 6 is a schematic view of the rays of a presbyopic lens of the present utility model.

Reference numerals

1. A lens body; 2. an optical correction zone; 3. a primary defocus region; 31. an annular defocusing belt; 4. an auxiliary defocus region; 41. a first arcuate defocus zone; 42. a second arcuate defocus zone; 5. and a scale auxiliary area.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Example 1:

the utility model provides a point chain defocusing lens, which is shown in figures 1-4, and comprises a lens body 1, wherein the diameter of the lens body 1 is set to be 65-80 mm, and the lens body 1 is made of PC (polycarbonate) material or resin material and the like.

The optical correction area 2, the main defocusing area 3 and the auxiliary defocusing area 4 are sequentially arranged on the lens body 1 from inside to outside, the auxiliary defocusing area 4 comprises a plurality of first arc defocusing areas 41, the central line circumferences of all the first arc defocusing areas 41 are uniformly distributed on the outer side of the main defocusing area 3, and a plurality of unit defocusing parts are sequentially arranged on the first arc defocusing areas 41 along the central line of the first arc defocusing areas.

The lens body 1 is a concave lens, the unit defocusing part is a bulge, the unit defocusing part is a circle, the diameter of the unit defocusing part is 0.6-1.3 mm, and the point chain defocusing lens forms a myopia defocusing lens.

As shown in fig. 5, the user wears the myopia defocusing lens, and part of light passes through the optical correction area 2, is refracted, and then is focused on the retina through the pupil, so that the imaging is clear.

Part of light passes through a blank gap between unit defocusing parts of the main defocusing area 3 and the auxiliary defocusing area 4, and after refraction, the light is focused on the retina through the pupil, so that the imaging is clear.

The rest light passes through the unit defocusing parts of the main defocusing area 3 and the auxiliary defocusing area 4, and after refraction, the light is focused to the front of the retina through the pupil, and the imaging is advanced.

In the above process, the main defocus region 3 and the auxiliary defocus region 4 are matched with each other, so that a reasonable defocus area is provided, sufficient defocus can be provided, and myopia defocus shown in fig. 5 is formed through imaging advanced optical phenomena, thereby effectively inhibiting eye axis stretching and slowing down the myopia deepening degree.

And the auxiliary defocusing area 4 is positioned outside the main defocusing area 3, so that blank imaging lag of the existing defocusing lens that the outer side of the defocusing area is completely connected can be effectively prevented.

Meanwhile, the auxiliary defocusing area 4 adopts an arc-shaped distribution structure similar to a star chain, and on the basis of guaranteeing defocusing effect, the unit defocusing part has a reasonable bright visual area, the bright visual area is sufficient, the real object is not deformed, and the wearing is clear and comfortable.

As an alternative embodiment, as shown in fig. 2 and 4, the secondary defocus region 4 includes a plurality of second arc-shaped defocus belts 42, the central lines of all of the second arc-shaped defocus belts 42 are circumferentially uniformly distributed outside the primary defocus region 3, and the second arc-shaped defocus belts 42 are sequentially provided with a plurality of unit defocus portions along the central lines thereof.

The center line of the first arc-shaped defocusing band 41 is curved in a clockwise direction, and the center line of the second arc-shaped defocusing band 42 is curved in a counterclockwise direction; the unit defocus portion is provided at a position where the center line of the first arc-shaped defocus belt 41 intersects with the center line of the second arc-shaped defocus belt 42.

Thus, the auxiliary defocusing area 4 has the unit defocusing part with the density degree, the structure is regular and compact, and the large bright vision area is provided while the sufficient defocusing amount is provided.

The distance between the adjacent first arc-shaped defocusing belts 41 and the adjacent second arc-shaped defocusing belts 42 is set to be b, and 0.8mm is larger than or equal to b and larger than or equal to 0.4mm.

As an alternative embodiment, as shown in fig. 2 and 4, the center line of the first arc-shaped defocus belt 41 is set to be circular arc, and the center line of the second arc-shaped defocus belt 42 is set to be circular arc.

The arc diameter of the first arc-shaped defocusing belt 41 and the arc diameter of the second arc-shaped defocusing belt 42 are both set to d,50mm is larger than or equal to d is larger than or equal to 30mm, and preferably, the arc diameter d is set to be about 40 mm.

The radian of the first arc-shaped defocusing belt 41 and the radian of the second arc-shaped defocusing belt 42 are both set to be alpha, 60 degrees or more, and alpha is or more than 45 degrees.

As an alternative embodiment, as shown in fig. 2 and 3, the main defocus region 3 includes a plurality of annular defocus belts 31, the annular defocus belts 31 are annular, and all the annular defocus belts 31 are sleeved in sequence in the inside-to-outside direction.

The distance between the adjacent annular defocusing belts 31 is set to be a, and a is more than or equal to 1mm and more than or equal to 0.3mm.

The annular defocusing belt 31 comprises a plurality of unit defocusing portions which are uniformly arranged in the circumferential direction, and the distance between adjacent unit defocusing portions of the same annular defocusing belt 31 is set to be 0.2-0.7 mm.

The unit defocusing part of the main defocusing area 3 and the unit defocusing part of the auxiliary defocusing area 4 have the same structure and size.

The inner annular defocused zone 31 encloses an optical correction zone 2, and the diameter of the optical correction zone 2 is set to be 9-10 mm.

As an alternative embodiment, the defocus amounts of the unit defocus portions of the annular defocus belt 31 are increased one by one in the inside-to-outside direction, and the defocus amounts of the unit defocus portions of the first arc defocus belt 41, the unit defocus portions of the second arc defocus belt 42 are the same as those of the unit defocus portions of the outermost annular defocus belt 31.

Therefore, the main defocus region 3 with the unit defocus part gradually increasing from inside to outside is matched with the auxiliary defocus region 4 with the unit defocus part with larger defocus degree, on one hand, the fundus retina structure is matched, so that the eye can not feel obvious change when looking at objects, the object is comfortable, on the other hand, the longer the periphery of the central concave eye axis of the macula is, the lower the defocus amount corresponding to the macula is, the shorter the vision path is, the higher the defocus amount corresponding to the macula is, and the higher the defocus degree sequentially gradually increasing from inside to outside is adopted, so that the advanced imaging effect can be effectively ensured, and the inhibition effect of deepening the vision is more prominent.

Alternatively, the number of annular defocus belts 31 is 9, the defocus amounts of the unit defocus portions of the innermost annular defocus belt 31 are 375 °, and the defocus amounts of the unit defocus portions of the other annular defocus belts 31 are sequentially increased by 10 ° in the inside-to-outside direction on the basis of this, respectively 385 °, 395 °, 405 °, 415 °, 425 °, 435 °, 445 °, 455 °, the defocus amounts of the unit defocus portions of the first arc defocus belt 41 and the unit defocus portions of the second arc defocus belt 42 are 455 °.

As an alternative embodiment, as shown in fig. 2, a scale auxiliary area 5 is provided on the lens body 1, and the scale auxiliary area 5 is provided outside the auxiliary defocus area 4.

The scale auxiliary area 5 comprises a plurality of scale marks, all the scale marks are circumferentially and uniformly arranged at the edge position of the lens body 1, the scale marks are arranged along the diameter direction of the lens body 1, and each scale mark corresponds to a corresponding angle.

In the process of customizing the lens, the scale auxiliary area 5 is used for the correspondence of the standard defocus geometric center and the lens optical center of the secondary turning grinding luminosity, the grinding quantity is about 3mm, and after the turning luminosity is finished, only 180-degree scale lines and 90-degree scale lines are reserved for the subsequent test and assembly of the eyeglass calibration center.

The scale auxiliary area 5 is arranged to provide a processing datum line, so that the point chain defocused lens can be conveniently positioned at the geometric center in the customizing process, the precision of the coincidence of the front surface defocused geometric center and the rear surface optical center in the customizing process of the blank lens can be effectively improved, and the coincidence degree of the defocused geometric center, the lens optical center, the astigmatism axis and the pupil center line is improved when a lens is assembled by an optical distributor.

In order to detect the use effect of the point chain defocusing lens, the point chain defocusing lens is prepared for teenagers with 50-bit age 6-17 years old and correcting eyesight more than 1.0, and is worn for one year, and is continuously tracked, so that the following detection result is obtained.

Table 1 optometry results

TABLE 1 optometry results (follow-up 1)

TABLE 1 optometry results (Xue 2)

TABLE 1 optometry results (Xue 3)

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TABLE 1 optometry results (Xue 4)

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Remarks:

to ensure the personal privacy of 50 teenagers aged 6-17 years, the 50 teenagers are replaced by serial numbers.

The left eye represents the left eye, the right eye represents the right eye, S represents the near vision power, C represents the astigmatism power, A represents the astigmatism axis angle, taking the right S-3.00C-1.00A179 as an example, which represents that the right eye optometry result is near vision 300 degrees, astigmatism 100 degrees, and the astigmatism axis angle is 179 degrees.

According to the optometry result table, in the least 50 years of the young, 35 eyes can maintain the original program unchanged within one year, the degree of myopia of 5 eyes is reduced, the vision is relieved, the myopia of only 10 eyes is deepened, and the deepening degree is not more than 50 degrees, so that the utility model can effectively inhibit the deepening of myopia and has obvious effect.

The utility model also provides an embodiment 2 to an embodiment 8, wherein the embodiment 2 to the embodiment 8 are specific optimized embodiments according to different age groups.

Example 2 to example 8 were designed for different sizes of point chain defocus lenses according to teenagers of different ages, and the parameters of the corresponding ages were different due to the different adaptability of each age group.

The point chain defocusing lens can effectively inhibit myopia from deepening, even partial vision rollback occurs, vision is relieved, and the effect is remarkable.

Example 9:

example 9 differs from example 1 in that:

the lens body 1 is provided as a convex lens, the unit defocus portion is provided as a groove, and the point chain defocus lens forms a hyperopic defocus lens, this embodiment being mainly directed to hyperopic children whose eye axis is short or with amblyopia.

As shown in fig. 6, the user wears the far-vision defocus lens, and part of the light passes through the optical correction area 2, is refracted, and then is focused on the retina through the pupil, so that the imaging is clear.

Part of light passes through a blank gap between unit defocusing parts of the main defocusing area 3 and the auxiliary defocusing area 4, and after refraction, the light is focused on the retina through the pupil, so that the imaging is clear.

The rest of the light passes through the unit defocusing parts of the main defocusing area 3 and the auxiliary defocusing area 4, and after refraction, the light is focused to the rear of the retina through the pupil, and imaging is delayed.

In the above process, the main defocus region 3 and the auxiliary defocus region 4 are matched with each other, and through the imaging lag optical phenomenon, the far vision defocus shown in fig. 5 is formed, so that the extension of the eye axis can be effectively stimulated, and a good far vision inhibition deepening effect is achieved.

Alternatively, the unit defocus can be configured as a bump to create myopia defocus by imaging advanced optics for a near-sighted child who is about to have myopia or has insufficient hyperopic reserve near the critical point, to delay the time for the child to change myopia.

Example 10

Embodiment 10 is based on any of the embodiments above:

the utility model provides a pair of glasses, wherein the glasses comprise the point chain defocused lenses.

The glasses with the point chain defocusing lenses have the advantages that the defocusing area basically covers the lens body 1, the sufficient defocusing amount and the reasonable photopic vision area are provided, the effect of inhibiting the vision deepening is remarkable, in addition, the vision objects are not deformed, and the glasses are clear and comfortable to wear.

In the description of the present application, it should be understood that the terms "upper," "lower," "inner," "outer," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 the description of the present application, the meaning of "a plurality", "a number" or "a plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; 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 terms in this application will be understood by those of ordinary skill in the art as the case may be.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a point chain defocusing lens, its characterized in that includes the lens body, optical correction district, main defocusing district and auxiliary defocusing district have been set gradually from inside to outside on the lens body, wherein:

the auxiliary defocusing area comprises a plurality of first arc defocusing areas, the central lines of all the first arc defocusing areas are circumferentially and uniformly distributed on the outer side of the main defocusing area, and the first arc defocusing areas are sequentially provided with a plurality of unit defocusing parts along the central lines of the first arc defocusing areas.

2. The point chain defocus lens of claim 1, wherein the secondary defocus region comprises a plurality of second arc defocus zones, the midlines of all of the second arc defocus zones being circumferentially evenly distributed outside the primary defocus zone, the second arc defocus zones having a plurality of unit defocus portions sequentially disposed along their midlines.

3. The point chain defocus lens of claim 2, wherein the midline of the first arcuate defocus belt is curved in a clockwise direction and the midline of the second arcuate defocus belt is curved in a counterclockwise direction;

the unit defocusing portion is arranged at a position where the central line of the first arc defocusing band intersects with the central line of the second arc defocusing band.

4. The point chain defocus lens of claim 3 wherein the midline of the first arcuate defocus zone is provided as an arc;

the midline of the second arc defocusing belt is arranged as an arc.

5. The point chain defocus lens of claim 3, wherein the main defocus region comprises a plurality of annular defocus zones, all of which are nested in sequence in an inside-to-outside direction;

the annular defocusing zone comprises a plurality of unit defocusing parts which are circumferentially and uniformly arranged.

6. The point chain defocus lens of claim 5, wherein the annular defocus zone increases in defocus power of its unit defocus portion from inside to outside;

the unit defocusing parts of the first arc defocusing belt and the second arc defocusing belt are the same as the defocusing degree of the unit defocusing part of the annular defocusing belt at the outermost layer.

7. The point chain defocus lens of claim 1, wherein the lens body is provided with a scale auxiliary area, the scale auxiliary area being disposed outside the auxiliary defocus area;

the scale auxiliary area comprises a plurality of scale marks, and all the scale marks are circumferentially and uniformly arranged at the edge part of the lens body.

8. The point chain defocus lens of any one of claims 1-7, wherein the lens body is provided as a concave lens and the unit defocus portion is provided as a protrusion.

9. The point chain defocus lens of any one of claims 1-7, wherein the lens body is provided as a convex lens and the unit defocus portion is provided as a groove or a protrusion.

10. Spectacles comprising a point chain defocus lens according to any one of claims 1 to 9.

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