阅读说明：本技术 一种矫正老花与预防老花的镜片、老花眼镜及其装配方法 (Presbyopic correcting and presbyopic preventing lens, presbyopic glasses and assembling method thereof ) 是由 王安 于 2020-05-13 设计创作，主要内容包括：本发明公开了一种矫正老花与预防老花的镜片、老花眼镜及其装配方法,包括镜片本体,所述镜片本体具有朝向物相的渐进面和朝向人眼的凹球面,所述镜片本体设有凹球面形成的远用区域和渐进面形成的近用区域,与所述近用区域对应的渐进面具有近光附加度,还包括：设置在所述渐进面上的透光层,所述透光层的底色是浅黄色或黄色。本发明的有益效果是：增加了底色为黄色的透光层在渐进面上,将镜片本体的光度变化区域设置在了镜片本体的后表面,有效预防老花镜片轻微的加光变化,使镜片本体的渐进面更加贴近眼睛,极大提升了视野范围,还能有效缓解眼睛疲劳。(The invention discloses a lens for correcting and preventing presbyopia, presbyopia glasses and an assembling method thereof, wherein the presbyopia glasses comprise a lens body, the lens body is provided with a progressive surface facing an object phase and a concave spherical surface facing human eyes, the lens body is provided with a far area formed by the concave spherical surface and a near area formed by the progressive surface, the progressive surface corresponding to the near area has near light addition, and the presbyopia glasses also comprise: and the base color of the light transmitting layer is light yellow or yellow. The invention has the beneficial effects that: the euphotic layer that has increased the ground colour for yellow sets up the rear surface at the lens body with the luminosity change area of lens body on progressive surface, effectively prevents the slight change of adding light of presbyopic lens, makes the progressive surface of lens body press close to eyes more, has greatly promoted the field of vision scope, can also effectively alleviate eye fatigue.)

1. A lens for correcting and preventing presbyopia, comprising a lens body having a progressive surface facing the object phase and a concave spherical surface facing the human eye, characterized in that the lens body is provided with a distance zone formed by the concave spherical surface and a near zone formed by the progressive surface, the progressive surface corresponding to the near zone having a low beam addition, further comprising: and the base color of the light transmitting layer is light yellow or yellow.

2. The lens for presbyopia correction and presbyopia prevention of claim 1 wherein the light transmitting layer has a background wavelength range of 550nm to 600 nm.

3. A presbyopia correcting and presbyopia preventing lens according to claim 1, wherein the near add power of said progressive surface is set according to the requirement.

4. The lens of claim 1 wherein the lens body has marked thereon a distance reference circle and a near reference circle, both for assisting fitting.

5. A presbyopia correcting and presbyopia preventing lens according to claim 1, wherein a scratch-resistant film is provided on the progressive surface.

6. The lens for correcting and preventing presbyopia of claim 1, wherein said lens body is a resin lens.

7. Presbyopia glasses, comprising temple pieces, a frame and lenses for correcting and preventing presbyopia according to any one of claims 1 to 6 mounted on the frame, the temple pieces being movably mounted at both ends of the frame.

8. A pair of presbyopic glasses according to claim 7 wherein the frame is provided with two rims, the rims being full-rim rims or half-rim rims.

9. A method of assembling presbyopic glasses, characterized in that assembling presbyopic glasses according to claim 8 comprises the steps of:

manufacturing a template, namely manufacturing a template with the same shape and size as the mirror frame, and measuring the horizontal distance between the center of a circular hole of the template and the center of the bridge of the nose of the mirror frame and the vertical distance between the center of the circular hole of the template and the lowest point of the inner edge of the mirror frame;

adjusting the horizontal and vertical symmetrical center quantity of the lens-fitting cross, and combining the horizontal distance between the center of the template circular hole and the center of the bridge of the nose of the spectacle frame and the vertical distance between the center of the template circular hole and the lowest point of the inner edge of the spectacle frame according to the pupil distance and the pupil height of a single eye; determining the horizontal and vertical centre weighing of the fitting cross;

and (3) edging, namely using a polishing machine to grind the edge of the lens body so as to ensure that the ground lens body is matched with the spectacle frame.

Technical Field

The invention relates to the technical field of ophthalmic lenses, in particular to a lens for correcting and preventing presbyopia, presbyopia glasses and an assembling method thereof.

Background

At present, presbyopia becomes a common phenomenon of poor eyesight of middle-aged and old people, the eyestrain caused by the near vision of middle-aged and old people is seriously influenced, the symptoms of presbyopia can appear when people reach a certain age, the people cannot see clearly when seeing objects near the eyes, the people can see the eyes blurred, and the like, so that a lot of inconvenience is brought to the life of the middle-aged and old people.

At present, the lenses for solving presbyopia on the market are mostly close-looking presbyopia lenses, and the generation of presbyopia cannot be prevented before the gradual aging of body functions.

Disclosure of Invention

The present invention is directed to a lens for correcting and preventing presbyopia, presbyopia glasses and assembling method thereof, which solves the problems of the background art mentioned above.

In order to achieve the purpose, the invention provides the following technical scheme:

a lens for correcting presbyopia and preventing presbyopia, comprising a lens body having a progressive surface towards an object phase and a concave spherical surface towards a human eye, the lens body being provided with a distance zone formed by the concave spherical surface and a near zone formed by the progressive surface, the progressive surface corresponding to the near zone having a passing optical add power, further comprising: and the base color of the light transmitting layer is light yellow or yellow.

As a further scheme of the invention: the bottom color wavelength range of the light-transmitting layer is 550nm to 600 nm.

As a still further scheme of the invention: the near addition degree of the progressive surface is set according to requirements.

As a still further scheme of the invention: the lens body is marked with a far reference ring and a near reference ring which are used for assisting lens matching.

As a still further scheme of the invention: and the progressive surface is provided with a scratch-resistant film.

As a still further scheme of the invention: the lens body is a resin lens.

As another technical scheme of the invention: a pair of presbyopic glasses comprises glasses legs, a glasses frame and lenses which are arranged on the glasses frame and used for correcting presbyopia and preventing presbyopia, wherein the glasses legs are movably arranged at two ends of the glasses frame.

As a further scheme of the invention: the mirror holder is equipped with two picture frames, the picture frame is full frame picture frame or half frame picture frame.

The invention provides another technical scheme that: a method of assembling presbyopic glasses, the presbyopic glasses of the above are assembled, comprising the steps of: manufacturing a template, namely manufacturing a template with the same shape and size as the mirror frame, and measuring the horizontal distance between the center of a circular hole of the template and the center of the bridge of the nose of the mirror frame and the vertical distance between the center of the circular hole of the template and the lowest point of the inner edge of the mirror frame; adjusting the horizontal and vertical symmetrical center quantity of the lens-fitting cross, and combining the horizontal distance between the center of the template circular hole and the center of the bridge of the nose of the spectacle frame and the vertical distance between the center of the template circular hole and the lowest point of the inner edge of the spectacle frame according to the pupil distance and the pupil height of a single eye; determining the horizontal and vertical centre weighing of the fitting cross; and (3) edging, namely using a polishing machine to grind the edge of the lens body so as to ensure that the ground lens body is matched with the spectacle frame.

Compared with the prior art, the invention has the beneficial effects that: the euphotic layer that has increased the ground colour for yellow sets up the rear surface at the lens body with the luminosity change area of lens body on progressive surface, effectively prevents the slight change of adding light of presbyopic lens, makes the progressive surface of lens body press close to eyes more, has greatly promoted the field of vision scope, can also effectively alleviate eye fatigue.

Drawings

FIG. 1 is a schematic view of a lens for presbyopia correction and presbyopia prevention.

FIG. 2 is a schematic view of the multifocal distribution of the lens body in a presbyopia correcting and presbyopia preventing lens.

Fig. 3 is a schematic diagram of the working principle of the presbyopia correcting and presbyopia preventing lens.

FIG. 4 is a schematic cross-sectional view of a lens for presbyopia correction and presbyopia prevention.

In the drawings: 1-lens body, 2-progressive surface, 3-concave spherical surface, 4-euphotic layer, 5-far reference ring, 6-near reference ring and 7-prism reference point.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1-4, in an embodiment of the present invention, a lens for correcting and preventing presbyopia includes a lens body 1, the lens body has a progressive surface 2 facing an object phase and a concave spherical surface 3 facing a human eye, the lens body 1 has a distance area formed by the concave spherical surface 3 and a near area formed by the progressive surface 2, and the progressive surface corresponding to the near area has a near add power, and further includes: and a light-transmitting layer 4 disposed on the progressive surface 2, wherein the base color of the light-transmitting layer 4 is light yellow or yellow.

Specifically, the progressive surface 2 is a trifocal inner progressive surface as shown in fig. 2, and has three visual zones: the lens comprises a far area, a near area and a middle area, wherein the middle area adopts a progressive lens with an upper part, a lower part and an upper part, namely a lens with the upper half part of 0 degree and the lower half part of 100 degree; moreover, as shown in fig. 3, the radius of the curved surface of the base a of the progressive lens gradually increases from the ear measurement c to the nose measurement b, so that the abrupt change of the luminosity is eliminated, and vertigo is avoided. The near object image can be enlarged, and the visual fatigue can be reduced. The concave spherical surface 3 is formed by a concave lens, so that the accommodation can be stimulated when a user looks away, the zonules of the ciliary muscle are strengthened to lead the crystalline lens to have enhanced elasticity, and the function of preventing presbyopia is achieved.

The base color wavelength range of the light-transmitting layer 4 is 550nm to 600 nm. Specifically, a yellow light-transmitting layer having a wavelength of 580nm is used. The yellow light with the wavelength is the light which is most acceptable to eyes, is beneficial to the eyes and can eliminate fatigue.

In an embodiment of the present invention, the near addition degree of the progressive surface is set according to requirements, for example, the upper half is 0 degrees, and the lower half is added with 50 degrees, 100 degrees, and 200 degrees, and an appropriate degree is selected according to the inspection result of eye aging.

Referring to fig. 1, in the embodiment of the present invention, a far reference ring 5 and a near reference ring 6 are marked on the lens body 1, and both are used for assisting in fitting the glasses.

Specifically, before the lens is matched, the proper lens body 1 can be quickly and accurately selected according to the far reference ring 5 and the near reference ring 6 marked on the lens body 1. In the process of lens matching, the reference speed and the reference accuracy of the prism reference point 7 and the lens matching cross are improved by combining the far reference ring 5 and the near reference ring 6; the far reference ring and the near reference ring are erasable marks, and can be taken down or eliminated after the mark reference is finished, so that the use experience after the far reference ring and the near reference ring are matched with the spectacle frame is not interfered.

Referring to fig. 4, in the embodiment of the present invention, the progressive surface 2 is provided with a scratch-resistant film.

Specifically, prevent scraping the membrane and adopt triacetate fiber membrane or polytetrafluoroethylene membrane, when guaranteeing that high printing opacity is new, have good wear resistance, avoid the user to cause wearing and tearing to progressive face 2 at the in-process that uses, the extension the lens life of correction presbyopia and prevention presbyopia.

Referring to fig. 1, in the embodiment of the present invention, the lens body is a resin lens.

Specifically, compared with glass lenses, the resin lenses have strong elastic performance, the glass lenses are easy to break and heavy in weight, and the resin lenses are light in weight, good in breakage resistance and easy to process; and has 100% of ultraviolet protection function, and prevents the eyes from being damaged by various proprietary harmful rays, so that the resin lenses are better than the glass lenses for patients with mild myopia and presbyopia.

In another embodiment of the invention, the presbyopic glasses comprise glasses legs, a glasses frame and glasses which are installed on the glasses frame and used for correcting presbyopia and preventing presbyopia, wherein the glasses legs are movably installed at two ends of the glasses frame.

Specifically, the mirror holder is provided with two picture frames, and the picture frame is a full-frame picture frame. After the lenses for correcting and preventing presbyopia are processed and polished, the lenses are assembled in the full-frame spectacle frame and fixed; the presbyopic glasses have the functions of correcting presbyopic and preventing presbyopic.

Optionally, the frame is a half-full-frame, and the presbyopia correcting and presbyopia preventing lenses are processed and polished, and then assembled into the half-frame and fixed; the presbyopic glasses have the functions of correcting presbyopic and preventing presbyopic.

In another embodiment of the present invention, a method of assembling presbyopic glasses, the method comprising the steps of: manufacturing a template, namely manufacturing a template with the same shape and size as the mirror frame, and measuring the horizontal distance between the center of a circular hole of the template and the center of the bridge of the nose of the mirror frame and the vertical distance between the center of the circular hole of the template and the lowest point of the inner edge of the mirror frame; adjusting the horizontal and vertical symmetrical center quantity of the lens-fitting cross, and combining the horizontal distance between the center of the template circular hole and the center of the bridge of the nose of the spectacle frame and the vertical distance between the center of the template circular hole and the lowest point of the inner edge of the spectacle frame according to the pupil distance and the pupil height of a single eye; determining the horizontal and vertical centre weighing of the fitting cross; and (3) edging, namely using a polishing machine to grind and process the edge of the lens body so as to ensure that the ground lens body is matched with the spectacle frame.

Specifically, as shown in fig. 1, in this embodiment, the interpupillary distance of the right eye is 32 mm, the pupil height of the right eye is 22 mm, a template having the same shape and size as the spectacle frame is manufactured, and the horizontal distance between the center of the circular hole of the measuring template and the center of the bridge of the nose of the spectacle frame and the vertical distance between the center of the circular hole of the measuring template and the lowest point of the inner edge of the spectacle frame are 35 mm and 18 mm, respectively; the horizontal heart rate of the cross lens is 3 mm inward shift, and the vertical heart rate is 4 mm upward shift; and moving the lens-fitting cross to a required position on a centering instrument according to the obtained heart moving amount, namely moving to the position 3 mm inside and 4 mm above, and horizontally placing the processing datum line. And finishing edge grinding on a polishing machine after the fixing by using a sucking disc, and assembling the edge grinding on the mirror frame. Similarly, the glasses for correcting and preventing presbyopia for the left eye are also manufactured and assembled by adopting the method.

The working principle of the invention is as follows: the radius of the adopted progressive surface is gradually increased, so that the abrupt change of luminosity is eliminated, and vertigo is avoided. The near-vision addition degree is set, so that the near-vision object image can be enlarged, and the visual fatigue can be reduced. The concave spherical surface 3 is formed by a concave lens, and can stimulate the adjustment when seeing a long distance, strengthen the zonules of the ciliary muscle and strengthen the crystalline lens, so as to play a role in preventing presbyopia. The light-transmitting layer 4 is a yellow light-transmitting layer having a wavelength of 580 nm. The yellow light with the wavelength is the light which is most acceptable to eyes, is beneficial to the eyes and can eliminate fatigue.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.