CN111650761A - Lens, glasses and lens processing method - Google Patents

Abstract

The application discloses a lens, glasses and a lens processing method. The lens includes: a first amplification region and a second amplification region; the first amplification area is positioned in the center of the lens; the second amplification region annularly surrounds the first amplification region; the second amplification degree of the second amplification zone is greater than the first amplification degree of the first amplification zone. Can realize more reasonable design lens for the image that throws through this lens can both be accurate fall on user's retina, and the effect accords with the visual demand more, avoids causing negative effects to user's eyesight.

Description

Lens, glasses and lens processing method

Technical Field

The embodiment of the application relates to the technical field of optical parts of glasses, in particular to a lens, glasses and a lens processing method.

Background

With the annual increase of the incidence of myopia of teenagers, the eyes of the teenagers are in the growth and development period, the curriculum stress is large, the eyesight is in a long-term tension state, and the degree is increased too fast. The modern urban young people, computers, mobile phones, microblogs and emails can not be few, the visual fatigue also becomes epidemic, and the caused symptoms comprise lacrimation, eye pain, blurred vision and the like. In practical application, some people can wear degree correcting glasses, blue light preventing glasses and the like. However, these lens powers are not properly set, which can cause the lens power to be increased.

Therefore, the technical scheme of the application provides a more reasonable lens power design scheme, a lens processing method and glasses formed based on the lens.

Disclosure of Invention

The lens, the glasses and the lens processing method are used for providing the lens, the glasses and the lens processing method which are more reasonable in degree setting for a user.

In a first aspect, embodiments of the present application provide a lens, including:

the lens includes: a first amplification region and a second amplification region;

the first amplification area is positioned in the center of the lens;

the second amplification region annularly surrounds the first amplification region;

the second amplification degree of the second amplification zone is greater than the first amplification degree of the first amplification zone.

Optionally, the first degree of amplification of the first amplification zone is 0 degrees.

Optionally, the first amplification region and the second amplification region are concentric circles.

Optionally, the method further comprises: a third amplification region;

the third amplification zone annularly surrounds the second amplification zone, and a third degree of amplification of the third amplification zone is greater than a second degree of amplification of the second amplification zone.

Optionally, the third amplification region and the second amplification region are concentric circles.

Optionally, the degree of amplification of the second amplification area is 20 degrees to 30 degrees, and the degree of amplification of the third amplification area is 45 degrees to 50 degrees.

Optionally, the lenses are spherical and aspherical lenses having a thickness between 1.0mm and 10.0mm, the lenses having a curvature between 0 and 800.

Optionally, the material of the lens includes: nylon, PC, CR39, resin and acrylic.

In a second aspect, embodiments of the present application provide eyewear comprising:

the glasses comprise a frame and lenses, wherein at least one lens is arranged on the frame.

In a third aspect, an embodiment of the present application provides a lens processing method, including:

processing a first amplification area with a first amplification degree in the central area of the lens by utilizing machine tool equipment;

a second amplification area with a second amplification degree is processed annularly around the first amplification area; wherein the second degree of amplification is greater than the first degree of amplification.

In the embodiment of the application, a first amplification area with a first amplification degree is arranged at the center of the lens, and a second amplification area with a second amplification degree is annularly arranged on the periphery of the first amplification area. And the second degree of amplification is greater than the first degree of amplification. Through above-mentioned technical scheme, can realize more reasonable design lens for the image that throws through this lens can both be accurate fall on user's retina, and the effect accords with the visual demand more, avoids causing negative effects to user's eyesight.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of an eye-viewing article provided by an embodiment of the present application;

FIG. 2 is a schematic view of a myopic eye viewing article provided by an embodiment of the present application;

FIG. 3 is a schematic view of a myopic eye corrective viewing article provided by an embodiment of the present application;

FIG. 4a is a schematic side view of a lens according to an embodiment of the present disclosure;

fig. 4b is a schematic front view of a lens according to an embodiment of the present disclosure;

fig. 5 is a schematic flow chart of a lens processing method according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another lens provided in the embodiment of the present application.

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 terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

Fig. 1 is a schematic view of an eye-viewing article according to an embodiment of the present application. As can be seen in fig. 1, when the normal eye (i.e., the eye without any problem) looks at the article, both the central and peripheral images of the object are projected on the retina. The imaged retina of the eye is a non-planar structure and the object image will follow the shape of the retina to project.

Fig. 2 is a schematic view of a near-sighted observation article provided by an embodiment of the application. As can be seen in fig. 2, when looking at the article near the eye, both the central and peripheral images of the object are projected in front of the retina (due to the lengthening of the eye axis).

When the eyes are nearsighted, the eyes can be corrected. Fig. 3 is a schematic view of a myopic eye correction observation article provided by an embodiment of the present application. As shown in fig. 3, when the single vision correction lens is used for correcting feet, the central image of the object is projected on the retina, so that the object can be seen clearly, but the peripheral image is projected behind the retina. The result of such projection can be a false induction to the eye. It should be noted that the reason for the growth of the axis of the eye is: because the vision system of children and teenagers aged 3-13 is still in the development stage, when the peripheral image of the object is projected behind the retina, the peripheral retina can send out a stimulation signal that the vision is defective, inform the eyeball to elongate and make the retina grow backwards, induce the axis of the eye to increase and form myopia, thereby leading to the myopia degree to continuously deepen every year, namely, the normal vision can not be recovered once wearing the myopia glasses, and the problem that the degree is more and more large easily occurs.

In order to solve the above problems, the present application proposes a lens-related solution.

Fig. 4a is a schematic side view of a lens according to an embodiment of the present disclosure. Fig. 4b is a schematic front view of a lens according to an embodiment of the present application. As can be seen in fig. 4a and 4b, the lens comprises: a first amplification region 101 and a second amplification region 201; the first enlargement area 101 is located at the center of the lens; the second amplification region 201 annularly surrounds the first amplification region 101; the second degree of amplification of the second amplification zone 201 is greater than the first degree of amplification of the first amplification zone 101.

As shown in fig. 4a and 4b, since the second amplification area 201 is located at the periphery of the first amplification area 101, in order to enable the object image projected by the second amplification area 201 to be projected onto the retina, the second amplification area 201 can be used for amplification and the light path can be adjusted. Eventually, all images of the article are projected onto the retina.

Preferably, the first amplification degree of the first amplification area 101 is 0 degree. Because there is no obvious power when the lens is used for eyes, the first magnification power is set to be zero, and the image of the object can be ensured to be just projected to the central position of the retina.

If the eye has power, the appropriate first magnification power can be selected directly as desired, but care should be taken to ensure that the projection projected through the first magnification region 101 can be projected exactly to the central location of the retina.

As an alternative, the first amplification zone 101 and the second amplification zone 201 are concentric circles. The shape of the device is similar to that of the retina, so that the image of the object can be uniformly projected on the retina. Of course, other shapes may be used to meet other requirements, such as design or aesthetic appearance. It should be noted that even if other shapes are provided, a concentric structure (e.g., concentric rectangles) is ensured.

As an alternative, the method further comprises the following steps: a third amplification region 301; the third amplification region 301 annularly surrounds the second amplification region 201, and the third amplification degree of the third amplification region 301 is greater than the second amplification degree of the second amplification region 201.

Fig. 6 is a schematic structural diagram of another lens provided in the embodiment of the present application. Generally, three magnifying areas are provided to project all images of the object onto the retina. The three amplification areas are adjacent to each other, and may be gradually amplified from 25 degrees to 50 degrees. Specifically, the increase rate per unit distance may be set according to actual requirements such as the lens size.

In addition, in practical application, for example, the degree of amplification required is larger, and a plurality of amplification subareas can be arranged, so that more stable over-amplification is realized.

If the first amplification region 101 and the second amplification region 201 are concentric circles, the third amplification region 301 and the second amplification region 201 are concentric circles. The shape of the device is similar to that of the retina, so that the image of the object can be uniformly projected on the retina. Of course, other shapes may be used to meet other requirements, such as design or aesthetic appearance. It should be noted that even if other shapes are provided, a concentric structure (e.g., concentric rectangles) is ensured.

In practical applications, the sizes of the first amplification region 101, the second amplification region 201, and the third amplification region 301 may be set according to actual needs. For example, the sizes of the first magnification area 101, the second magnification area 201 and the third magnification area 301 are determined according to the size of the lens and the distance projected by the lens to the retina.

As an alternative, the degree of amplification of the second amplification region 201 is 20 degrees to 30 degrees, and the degree of amplification of the third amplification region 301 is 45 degrees to 55 degrees. The degree of amplification referred to herein is a preferred embodiment. In practical application, the degree can be set according to actual requirements.

As an alternative, the lenses are spherical and aspherical lenses having a thickness of between 1.0mm and 10.0mm, the lenses having a curvature of between 0 and 800.

As an alternative, the material of the lens includes: nylon, PC, CR39, resin and acrylic.

A first amplification area 101 with a first amplification degree is arranged at the center of the lens, and a second amplification area 201 with a second amplification degree is annularly arranged on the periphery of the first amplification area 101. And the second degree of amplification is greater than the first degree of amplification. Through above-mentioned technical scheme, can realize more reasonable design lens for the image that throws through this lens can both be accurate fall on user's retina, and the effect accords with the visual demand more, avoids causing negative effects to user's eyesight.

In practical application, a blue light prevention function can be added to the lens, for example, a blue light prevention factor is added to a lens base material to absorb harmful blue light in life, so that the purpose of blue light blocking protection is achieved. Or, film layer reflection is adopted, wherein the surface of the lens is coated with a film, and harmful blue light is reflected through the film layer, so that the purpose of blue light blocking protection is achieved. Or, the technology combines the advantages of the two technologies, performs double-effect protection under the condition of double management, and is mainly applied to the anti-blue-light glasses of the moon lens.

In addition, other degrees can be added to the lens, so that the lens has the functions of myopia glasses or presbyopic glasses. When adding the number of degrees, the number of degrees may be added on the basis of the number of degrees of amplification corresponding to the first amplification area 101, the second amplification area 201, and the third amplification area 301.

Alleviate asthenopia, the number of degrees of eyes is deepened is prevented in the full-range control, overcome peripheral region of traditional resin lens comprehensively and cross the difficulty of rectifying, it has the difficult problem of blind area with the change of central zone number to have solved the lens periphery, so the lens edge number of degrees reduces so the peripheral ordinary lens formation of image of distinguishing of lens in front of the retina, fatigue state when having solved the eyeball and seeing near the object for a long time, wear the fatigue that slows down vision, the all-round defocus form sensation of stopping is deprived, the shaping principle of cornea can effectively alleviate myopia number of degrees and increase.

The unique mirror surface curve design makes the lens as light as feather and as thin as cicada's wing. The weight of the 1.56 full focus lens is obviously reduced compared with the common 1.61 aspheric lens under the condition of the same degree. Under the condition of the same power, the thickness of the edge of the 1.61 full-focus lens is obviously reduced compared with that of a common 1.67 aspheric lens.

Based on the same idea, the embodiments of the present application further provide glasses, where the glasses include a frame and lenses, and at least one lens corresponding to fig. 4a and 4b is configured on the frame.

Based on the same idea, the embodiment of the application further provides a lens processing method. Fig. 5 is a schematic flow chart of a lens processing method provided in an embodiment of the present application, the method including the following steps:

501: a first magnification zone having a first magnification power is machined in the central region of the lens by means of a machine tool.

502: a second amplification area with a second amplification degree is processed annularly around the first amplification area; wherein the second degree of amplification is greater than the first degree of amplification.

Preferably, the first degree of amplification may be zero degrees and the second degree of amplification may be 25 degrees. In addition, the lens can be processed into three amplification areas according to the processing time, and the third amplification area annularly surrounds the second amplification area.

The lens adopts a free-form surface design: the single-point CNC machine tool is used for processing the free-form surface lens, the front surface is pressed and formed by a mould, and the complex optical surface type and the prescription degree of the lens are directly processed on the rear surface. The free-form surface has the characteristics of asymmetric surface shape, flexible spatial layout and rich design freedom.

The myopia-preventing, pressure-reducing and blue-light-preventing lens for the teenagers has clear and free central vision, and meanwhile, axis growth myopia caused by peripheral retinas is prevented, the increase of the degree of the full focus lock is controlled, the deepening of the myopia degree of the teenagers is effectively delayed, and the eye pressure is relieved. The unique lock control technology of the lens can greatly relieve visual fatigue, effectively filter harmful blue light of electronic products, resist the harm of ultraviolet rays to eyes, improve the flexibility of eye adjustment and simultaneously protect eyes in an all-round and three-dimensional way.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. A lens, characterized in that it comprises: a first amplification region and a second amplification region;

the first amplification area is positioned in the center of the lens;

the second amplification region annularly surrounds the first amplification region;

the second amplification degree of the second amplification zone is greater than the first amplification degree of the first amplification zone.

2. The lens of claim 1, wherein the first magnification power of the first magnification zone is 0 degrees.

3. The lens of claim 1, wherein the first magnified region and the second magnified region are concentric circles.

4. The lens according to claim 1, further comprising: a third amplification region;

the third amplification zone annularly surrounds the second amplification zone, and a third degree of amplification of the third amplification zone is greater than a second degree of amplification of the second amplification zone.

5. The lens of claim 4, wherein the third magnified region and the second magnified region are concentric circles.

6. The lens of claim 4, wherein the second magnification zone has a power of 20 to 30 degrees and the third magnification zone has a power of 45 to 50 degrees.

7. The lens according to claim 1, characterized in that it is spherical and aspherical with a thickness between 1.0mm and 10.0mm, the curvature of said lens being between 0 and 800.

8. The lens of claim 1, wherein the lens material comprises: nylon, PC, CR39, resin and acrylic.

9. Spectacles, characterized in that they comprise a frame and a lens, the frame being provided with at least one lens as claimed in claims 1 to 8.

10. A method of lens processing, the method comprising:

processing a first amplification area with a first amplification degree in the central area of the lens by utilizing machine tool equipment;

a second amplification area with a second amplification degree is processed annularly around the first amplification area; wherein the second degree of amplification is greater than the first degree of amplification.

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