CN115704968A

CN115704968A - Myopia glasses lens

Info

Publication number: CN115704968A
Application number: CN202110904001.9A
Authority: CN
Inventors: 陈冠南; 丁毅
Original assignee: Albo Technology Co ltd
Current assignee: Albo Technology Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-17

Abstract

The application relates to the technical field of optical lens application, discloses a myopia lens, myopia lens includes: a first dioptric region located in a central region of the myopic ophthalmic lens, the first dioptric region being convex in an object-side direction; and a second dioptric region located in a peripheral region of the myopic ophthalmic lens and surrounding the first dioptric region, the second dioptric region being concave toward the object side direction, the second dioptric region having an optical element convex toward the object side direction; wherein the optical elements of the first dioptric region and the second dioptric region cooperate to focus light rays on the retina. The application provides a myopia lens, towards the object side direction, is located outlying second dioptric area and is the concave surface, the convex surface design of current lens, the myopia lens that this application provided is obviously thinner, is equipped with optical element simultaneously and eliminates the clear formation of image of error guarantee.

Description

Myopia glasses lens

Technical Field

The application belongs to the technical field of glasses application in general, and particularly relates to a myopia spectacle lens.

Background

According to the research report of the world health organization, the country is the first myopia big country in the world, the myopia rate of teenagers is the first in the world, and in addition, the high myopia proportion of the teenagers is also in the situation of increasing year by year. The national health commission and disease control institute develops a special myopia survey in 9 to 12 months in 2020, and displays the total myopia rate of children and teenagers in China of 52.7% in 2020 according to published survey data.

The existing myopia lens is concave-convex, which is determined in the optical design, because if we want to design an optical lens, it is easy to simply image the lens, and there may not be various shapes with concave-convex surface; but it is not so simple to get a better rendition of the image (i.e. to get the image as if it were true), normal imaging can produce various aberrations that can change the shape, color, size, etc. of the image. To reduce these aberrations, even to 0, special adjustments to the various surfaces of the lens are made. The general purpose of the existing myopia lens is to reduce aberration and make the image more consistent with the original object.

The inventor finds that one surface of the existing myopia lens is convex and the other surface of the existing myopia lens is concave, the convergence and diffusion effects of the two surfaces to light are opposite, and the spectacle lens is thick in order to achieve the required refractive power, so that a myopia patient with heavy quality is inconvenient to wear.

Disclosure of Invention

In order to solve the technical problem that the myopia spectacle lens in the prior art is thick, the application provides a myopia spectacle lens.

In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:

a myopic ophthalmic lens comprising:

the first dioptric area is positioned in the central area of the myopic spectacle lens and is convex towards the object side; and the number of the first and second groups,

a second dioptric zone located in a peripheral region of the myopic ophthalmic lens and surrounding the first dioptric zone, the second dioptric zone being concave towards the object side direction, the second dioptric zone having an optical element convex towards the object side direction;

wherein the optical elements of the first dioptric region and the second dioptric region cooperate to focus light on the retina.

Optionally, the optical element is inclined towards the centre line of the myopic ophthalmic lens.

Optionally, the optical element comprises:

a first surface inclined toward the center line direction of the myopia lens; and the number of the first and second groups,

the second surface is parallel to the central line of the myopic lens, or the second surface inclines away from the central line of the myopic lens.

Optionally, the size of the first surface of the same optical element is larger than the size of the second surface.

Optionally, the coverage of the first face in the second refraction region is greater than 60%.

Optionally, the cross section of the optical element is triangular, trapezoidal or parallelogram.

Optionally, the optical element is a stepped optical element.

Optionally, the optical elements are multiple, and the multiple optical elements are sequentially connected to form at least one ring of annular protrusions.

Optionally, the optical element comprises a plurality of circles of annular protrusions, the plurality of circles of annular protrusions forming a concentric circle structure.

Optionally, the tilt angles of the optical elements are different.

By the technical scheme, the myopia spectacle lens has the advantages that:

a myopic ophthalmic lens comprising: a first dioptric region located in a central region of the myopic ophthalmic lens, the first dioptric region being convex in an object-side direction; and a second dioptric region located in a peripheral region of the myopic ophthalmic lens and surrounding the first dioptric region, the second dioptric region being concave toward the object side direction, the second dioptric region having an optical element convex toward the object side direction; wherein the optical elements of the first dioptric region and the second dioptric region cooperate to focus light on the retina. The existing myopia spectacle lens is a convex surface facing the object side direction for reducing aberration, the whole lens surface is in a concave form of a convex surface, the thickness of the edge of the lens is large, the whole quality of the lens is heavy, and a myopia patient is inconvenient to wear. The utility model provides a myopia lens, towards the object side direction, is located outlying second dioptric region and is the concave surface, and the convex surface design of current lens, the myopia lens that this application provided is obviously thinner.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of an implementable configuration of a myopic ophthalmic lens provided by the present invention;

FIG. 2 is a schematic side sectional view of an embodiment of a myopic ophthalmic lens provided by the present invention;

fig. 3 is a partially enlarged schematic view at a in fig. 2.

Wherein the reference numerals are as follows:

1. a first refractive region; 2. a second refractive region; 3. an optical element; 31. a first side; 32. a second face.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The existing myopia lens is convex and concave, which is determined in the optical design, because if we want to design an optical lens, if it is easy to simply image the lens, there may not be various shapes with convex surface and concave surface; but it is less simple to get a better rendition of the image (i.e. to get the image as if it were real), normal imaging can produce various aberrations that can change the shape, color, size, etc. of the image. To reduce these aberrations, even to 0, this is true for the particular adjustment of the various surfaces of the lens. The general purpose of the existing myopia lens is to reduce aberration and make the image more consistent with the original object.

The inventor finds that one convex surface and one concave surface of the existing myopia lens are opposite in convergence and diffusion effects of light on the two surfaces, and the spectacle lens is very thick in order to achieve the required refractive power, so that a myopia patient with heavy quality is inconvenient to wear.

In order to solve the above-mentioned thick technical problem of sight glass piece, this application provides a myopia glasses piece, includes: a first dioptric region located in a central region of the myopic ophthalmic lens, the first dioptric region being convex in an object-side direction; and a second dioptric zone located in a peripheral region of the myopic ophthalmic lens and surrounding the first dioptric zone, the second dioptric zone being concave towards the object side direction, the second dioptric zone having an optical element convex towards the object side direction; wherein the optical elements of the first dioptric region and the second dioptric region cooperate to focus light rays on the retina. The current myopia lens is the convex surface for reducing the aberration, and the mirror surface towards the object side direction is the concave form of the protruding one side of whole for the mirror surface, and this type of lens edge thickness is great, and the whole quality of lens is heavier, and myope wears to have inconvenience more.

For a more particular understanding of the technical idea of the present application, exemplary embodiments are described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of an implementable configuration of a myopic ophthalmic lens provided by the present invention; FIG. 2 is a schematic side sectional view of an embodiment of a myopic ophthalmic lens provided by the present invention; fig. 3 is a partially enlarged schematic view at a in fig. 2. As shown in fig. 1-3, the present application provides a myopic ophthalmic lens comprising: a first dioptric area 1 located in the central area of the myopic spectacle lens, wherein the first dioptric area 1 is convex towards the object side; and a second dioptric region 2 located in a peripheral region of the myopic spectacle lens and the second dioptric region 2 surrounding the first dioptric region 1, the second dioptric region 2 being concave toward the object side direction, the second dioptric region 2 having an optical element 3 convex toward the object side direction; wherein the optical elements 3 of the first dioptric area 1 and the second dioptric area 2 cooperate to focus light on the retina.

The application provides a myopia lens, towards the thing side direction, is located outlying second dioptric area 2 and is the concave surface, and the convex surface design of current lens, the myopia lens that this application provided is obviously thinner. The second dioptric region 2 is provided with the optical element 3 protruding towards the object side, the optical element 3 is arranged on the inward-recessed bearing surface of the second region and matched with the convex surface of the first dioptric region 1 to focus light on a retina, aberration is effectively eliminated on the basis of correcting myopia of a wearer, an object image is better restored, and clear imaging is guaranteed while the spectacle lens is thinner.

As an alternative embodiment of the invention, the optical element 3 is inclined towards the centre line of the myopic ophthalmic lens. Optionally, the optical element 3 comprises a first surface 31 inclined towards the central line of the myopic lens; and a second surface 32 parallel to the centerline of the myopic lens, or the second surface 32 is inclined away from the centerline of the myopic lens.

In an alternative embodiment of the invention, the first face 31 of the same optical element 3 has a larger size than the second face 32. The optical element 3 simulates the imaging effect of the conventional convex surface in the object side direction, wherein the inclination tendency of the first surface 31 of the optical element 3 is the same as the inclination tendency of the convex surface in the object side direction of the same region on the conventional spectacle lens, i.e. the first surface 31 of the optical element 3 plays a main role in eliminating the aberration. Specifically, the area of the light-facing surface on the same optical element 3 is larger than that of the backlight surface, and the coverage rate of the first surface 31 in the second dioptric region 2 is larger than 60% compared with that of all the optical elements 3. The optical elements 3 are multiple, the optical elements 3 are sequentially connected to form at least one circle of annular bulge, each optical element 3 comprises multiple circles of annular bulges, and the annular bulges form a concentric circle structure. The parallel light rays are irradiated and converged on the retina through the first surfaces 31 of the first area and the second area, and the first surfaces 31 and the second surfaces 32 in the second dioptric area 2 are arranged in an annular and alternate mode. The inclination angles of the optical elements 3 are different, and the inclination angles of the optical elements 3 gradually decrease from the center to the edge. The optical element 3 is an optical element 3, and the cross section of the optical element 3 is triangular, trapezoidal or parallelogram. Preferably triangular in cross-section, the optical element 3 tapers in width from the center of the lens to the bottom end of the optical element 3 at the edge. (in the present application, the bottom end of the optical element 3 is the end opposite to the tip end, the tip end of the optical element 3 is far away from the lens surface, and the bottom end of the optical element 3 is attached to the lens surface facing the object side of the lens.)

As an alternative embodiment of the invention, a myopic ophthalmic lens comprises: a first dioptric zone 1 and a second dioptric zone 2, the first dioptric zone 1 having a primary corrective lens body through which light rays are focused on the retina; the second dioptric region 2 is provided with a secondary corrective lens body, and light rays passing through the secondary corrective lens body are focused on the retina; the number of the main correcting mirror bodies is one, the number of the auxiliary correcting mirror bodies is one or more, and the main correcting mirror bodies and the auxiliary correcting mirror bodies are spliced with each other to form a complete mirror surface; the main correcting lens body is connected with the auxiliary correcting lens bodies and all the auxiliary correcting lens bodies in a smooth mode.

The thickness of the existing myopia spectacle lens is gradually thickened from the center to the edge, the thickness of the lens in the area far away from the center area is larger, and the quality of the lens is mainly concentrated in the edge area of the lens. The application relates to a main correction mirror body, vice correction mirror body, by center to marginal thickness increase gradually, the myopia lens that this application wades and provides, form by the concatenation of the main correction mirror body and vice correction mirror body, compare in current integral type lens, the thickness growth trend of the myopia lens that this application provided, between the main correction mirror body and vice correction mirror body, and/or overlap joint between two pairs of correction mirror bodies is interrupted to reach the thickness maximum value in the overlap joint. Under the condition that the sizes and the dimensions of the spectacle lenses are consistent, the thickness of the existing spectacle lenses keeps increasing trend from the center to the edge all the time, and compared with the conventional spectacle lenses, the spectacle lenses provided by the application begin another thickness increase and decrease cycle when the thickness does not reach the maximum, namely, the maximum thickness of the lenses provided by the application is only a certain thickness of the middle area of the existing spectacle lenses and is obviously smaller than the edge thickness of the existing spectacle lenses. Specifically, the maximum length M of the single auxiliary corrective lens body is smaller than the overall length L of the myopic spectacle lens, and M is smaller than L in order to ensure that the section of the thickness increasing area of the auxiliary corrective lens body is smaller than the existing lens. Specifically, the cross section of the optical element 3 is optional and not limited to a triangle, the height of the optical element 3 is 10-20 microns, the base width of the optical element 3 is 10-200 microns, and the width of the first side of each optical element 3 gradually decreases from the center to the edge of the myopic spectacle lens.

As an optional embodiment of the present invention, the number of the auxiliary corrective glasses is an even number greater than four, and each of the auxiliary corrective glasses is arranged around the periphery of the main corrective glasses; or the number of the auxiliary correcting mirror bodies is an odd number larger than three, and each auxiliary correcting mirror body is arranged around the edges of the left side, the right side and the upper side of the main correcting mirror body; or the number of the auxiliary correcting lens bodies is even, and the auxiliary correcting lens bodies are arranged on the left side and the right side of the main correcting lens body.

As an alternative embodiment of the present application, the surface inclination angles of different optical elements 3 or the same optical element 3 are different, and the refractive powers of the primary corrective lens body and the secondary corrective lens bodies are different and correspond to the myopia degrees of different areas of the eyeball of the wearer one by one.

Specifically, the refractive power of the auxiliary correcting lens body is +2.00D to +3.00D above the main correcting lens body (the upper and lower positions in the application are based on the user himself, wherein the upper part refers to the lens area of the glasses, which is close to the top of the user's head from the center of the lenses, in the wearing state, and the left part refers to the lens area of the glasses, which is close to the left arm of the user from the center of the lenses, in the wearing state); the refractive power of the auxiliary correcting lens body is +2.50D- +3.50D below the main correcting lens body; in the left-right direction, the main correcting mirror body is close to one side of the nose, and the refractive power of the auxiliary correcting mirror body is +2.50D- +3.50D; in the left-right direction, the main correcting mirror body is far away from the nose, and the refractive power of the auxiliary correcting mirror body is +1.50D- +2.50D.

It is noted that in the description and claims of the present application and in the above-mentioned drawings, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Also, the terms "comprises," "comprising," and "having," as well as any variations thereof or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications and changes to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A myopic ophthalmic lens, which comprises:

a second dioptric region located in a peripheral region of the myopic ophthalmic lens and surrounding the first dioptric region, the second dioptric region being concave toward the object side direction, the second dioptric region having an optical element convex toward the object side direction;

2. A myopic ophthalmic lens as claimed in claim 1, wherein the optical element is inclined towards the centre line of the myopic ophthalmic lens.

3. The myopic ophthalmic lens of claim 1, wherein the optical element comprises:

and the second surface is parallel to the center line of the myopic lens, or the second surface inclines away from the center line of the myopic lens.

4. A myopic ophthalmic lens as claimed in claim 3, wherein the size of the first face is greater than the size of the second face of the same optical element.

5. A myopic ophthalmic lens as claimed in claim 3, wherein the first face has a coverage in the second refractive region of greater than 60%.

6. The myopic ophthalmic lens of claim 1, wherein the cross-section of the optical element is triangular, trapezoidal or parallelogram shaped.

7. A myopic ophthalmic lens as claimed in claim 1, wherein the optical element is a stepped optical element.

8. The myopic ophthalmic lens of claim 1, wherein the optical element is a plurality of optical elements, and the plurality of optical elements are connected in series to form at least one ring of annular protrusions.

9. The myopic ophthalmic lens of claim 1, wherein the optical element comprises a plurality of turns of annular protrusions, the plurality of turns of annular protrusions forming a concentric circular structure.

10. A myopic ophthalmic lens as claimed in claim 1, wherein the inclination angle of each optical element is different.