CN215375986U

CN215375986U - Eccentric ring focal lens

Info

Publication number: CN215375986U
Application number: CN202121881608.1U
Authority: CN
Inventors: 蔡付明; 张加文; 张荭
Original assignee: Jiangsu Hongchen Group Co ltd
Current assignee: Jiangsu Hongchen Group Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-12-31
Anticipated expiration: 2031-08-12

Abstract

The utility model belongs to the technical field of spectacle lenses, in particular to an eccentric ring focal lens, which comprises an eccentric part and a ring focal part, wherein the upper end surface of the eccentric part is jointed with the lower end surface of the ring focal part, a plurality of annular areas with different degrees are arranged from inside to outside through an optical center, the prism effect and aberration generated by the increase of the thickness can be gradually counteracted, the hyperopic defocusing at the periphery of a side center is reduced, the form deprivation is reduced, the eye axis growth is slowed down, the optical center of the eccentric part deviates from the geometric center of the eccentric part on an X axis and a Y axis simultaneously, the optical center of the eccentric part corresponding to a left eye is positioned in a second quadrant of the eccentric part, the optical center corresponding to a right eye is positioned in a first quadrant of the eccentric part, the lenses with smaller radian and larger radian can be cut like common lenses, and simultaneously the cut optical centers of the lenses, pupils and objects can be ensured to be positioned on the same straight line, the optical performance is ensured, the accuracy of the interpupillary distance is ensured, the eccentric error is avoided, and the myopia of the eyes is prevented from being further deepened.

Description

Eccentric ring focal lens

Technical Field

The utility model relates to the technical field of spectacle lenses, in particular to an eccentric ring focal lens.

Background

The more popular and the increased learning pressure of the existing electronic equipment, the more and more time is spent on the teenagers to read electronic screens and books every day, the eye pressure of the teenagers is very high and the teenagers are easy to be tired due to the high-intensity eye use every day, and a series of visual problems can be caused for a long time. The current mainstream method is to apply the zoom lens to the wearable device, and when a user wears the wearable device, the lens in the eye of the wearer is adjusted to relax and exercise by moving the lens to make the eye correspond to the lens area with different diopter.

However, the existing ring-focus lens cannot ensure the accuracy of the interpupillary distance, and easily causes eccentric errors, so that the myopia of the eyes is deepened.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model provides an eccentric ring focal lens which has the characteristics of avoiding eccentric errors and preventing the myopia of eyes from deepening.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an eccentric ring burnt lens, includes eccentric portion and ring focal portion, the up end of eccentric portion and the lower terminal surface laminating of ring focal portion, ring focal portion includes optical center, optical center is provided with the annular region of a plurality of different degrees from inside to outside, optical center is simultaneously at the geometric centre of X axle and the epaxial skew eccentric portion of Y, eccentric portion is located the second quadrant of eccentric portion corresponding to its optical center of left eye, is located the first quadrant of eccentric portion corresponding to its optical center of right eye.

In order to adapt the lens to both high and low myopia, it is preferable that the annular focus is a concave or plano shape as one of the eccentric annular focus lenses of the utility model.

In order to precisely control the optical power of the lens and achieve the effect of effectively alleviating asthenopia, it is preferable that the annular focal portion of the eccentric focal lens of the present invention has an inner optical power which is constant at the optical center and gradually decreases by 360 degrees from the optical center to the outer periphery, and the annular focal portion has at least five annular zones.

In order to enable the luminosity to gradually decrease from the center to the edge without a blind zone in a jumping manner, the preferred range of the eccentric ring focal lens is that the gradual decreasing amplitude of the annular areas is 1-3 degrees.

In order to adapt the lens to people with different myopia degrees, the eccentric ring focus lens is preferably used as the eccentric ring focus lens, and the refractive index of each annular area of the ring focus part is 1.50-1.74.

In order to reduce the weight of the lens and improve wearing comfort, the sum of the thicknesses of the eccentric portion and the annular focal portion is preferably 6mm or less.

Compared with the prior art, the utility model has the beneficial effects that:

the optical center is provided with a plurality of annular areas with different degrees from inside to outside, the prism effect and the aberration generated by the increase of the thickness can be gradually counteracted, the hyperopic defocusing at the periphery of the side center is reduced, the form deprivation is reduced, the eye axis growth is slowed down, the control capability of effectively preventing the myopic degree deepening is realized, the optical center deviates from the geometric center of the eccentric part on the X axis and the Y axis simultaneously, the optical center of the eccentric part corresponding to the left eye is positioned in the second quadrant of the eccentric part, the eccentric angle is formed corresponding to the first quadrant of the right eye with the optical center positioned at the eccentric part, so that the lens with smaller radian and larger radian can be cut into the same shape as the common lens, meanwhile, the optical center of the cut lens, the pupil and an object are in the same straight line, the optical performance is guaranteed, the accuracy of the pupil distance is guaranteed, the eccentric error is avoided, and the further deepening of the myopia of the eyes is prevented.

In summary, the eccentric ring focal lens has the characteristics of avoiding eccentric errors and preventing the myopia of eyes from deepening.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the ring focus structure of the present invention;

FIG. 3 is a schematic view of the eccentric portion of the present invention;

in the figure, 1, an eccentric part; 2. a ring focus section; 3. an optical center; 4. an annular region.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides an eccentric ring burnt lens, including eccentric portion 1 and ring burnt portion 2, the up end of eccentric portion 1 and the laminating of the lower terminal surface of ring burnt portion 2, ring burnt portion 2 includes optics center 3, optics center 3 is provided with the annular region 4 of a plurality of different degrees from inside to outside, optics center 3 is at X axle and the epaxial geometric centre that deviates eccentric portion 1 of Y simultaneously, eccentric portion 1 is located the second quadrant of eccentric portion 1 corresponding to its optics center 3 of left eye, be located the first quadrant of eccentric portion 1 corresponding to its optics center 3 of right eye.

In this embodiment: the optical center 3 is provided with a plurality of annular areas 4 with different degrees from inside to outside, the prism effect and aberration generated by the increase of the thickness can be gradually counteracted, the hypermetropic defocusing at the periphery of the side center is reduced, the form deprivation is reduced, the eye axis growth is slowed down, and the control capability of effectively preventing the deepening of the myopia degree is realized, the optical center 3 of the eccentric part 1 deviates from the geometric center of the eccentric part 1 on the X axis and the Y axis simultaneously, the eccentric part 1 corresponds to the second quadrant of the optical center 3 of the left eye which is positioned on the eccentric part 1, and the optical center 3 of the right eye which is positioned on the first quadrant of the eccentric part 1 forms an eccentric angle, so that the lens with smaller radian and larger radian can be cut like a common lens, and simultaneously, the cut optical center 3 of the lens, the pupil and the object are positioned on the same straight line, the optical performance is ensured, the accuracy of the interpupillary distance is ensured, and the eccentric error is avoided, preventing further progression of myopia of the eye.

As a technical optimization scheme of the utility model, the ring focal part 2 is in a concave transparent shape or a flat light shape.

In this embodiment: the annular focal part 2 is in a concave shape or a flat shape, so that the lens is suitable for high myopia and low myopia at the same time, and the usability is improved.

As a technical optimization scheme of the utility model, the annular focal part 2 has constant internal luminosity at the optical center 3 and gradually decreases towards the periphery by 360 degrees away from the optical center 3, and the annular focal part 2 at least has five annular areas 4.

In this embodiment: through the setting of a plurality of annular regions 4, the luminosity precision of lens has effectively been improved, reaches the effect that effectively slows down visual fatigue.

As a technical optimization scheme of the utility model, the gradually decreasing amplitude of the annular areas 4 is 1-3 degrees.

In this embodiment: the gradually decreasing amplitude of the annular areas 4 is set to be 1-3 degrees, so that the luminosity gradually decreases from the center to the edge without a dead zone and in a jumping mode.

As a technical optimization scheme of the utility model, the refractive index of each annular region 4 of the annular focal part 2 is between 1.50 and 1.74.

In this embodiment: the refractive index of each annular area 4 of the annular focal part 2 is 1.50-1.74, the requirement of 100-1000 degrees myopia is met, and the lens is suitable for people with different myopia degrees.

As a technical optimization proposal of the utility model, the sum of the thicknesses of the eccentric part 1 and the ring focal part 2 is less than 6 mm.

In this embodiment: the sum of the thicknesses of the eccentric part 1 and the annular focal part 2 is less than 6mm, so that the weight of the lens is effectively reduced, and the wearing comfort of the lens is greatly improved.

The working principle and the using process of the utility model are as follows: the optical center 3 is provided with a plurality of annular areas 4 with different degrees from inside to outside, the prism effect and aberration generated by the increase of the thickness can be gradually counteracted, the hypermetropic defocusing at the periphery of the side center is reduced, the form deprivation is reduced, the eye axis growth is slowed down, and the control capability of effectively preventing the deepening of the myopia degree is realized, the optical center 3 deviates from the geometric center of the eccentric part 1 on the X axis and the Y axis simultaneously, the eccentric part 1 corresponds to the optical center 3 of the left eye and is positioned in the second quadrant of the eccentric part 1, and corresponds to the optical center 3 of the right eye and is positioned in the first quadrant of the eccentric part 1, so that an eccentric angle is formed, lenses with smaller radian and larger radian can be cut like common lenses, and simultaneously, the optical center 3 of the cut lenses, pupils and objects are positioned on the same straight line, the optical performance is ensured, the accuracy of the interpupillary distance is ensured, and the eccentric error is avoided, preventing further progression of myopia of the eye.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An eccentric ring focal lens, comprising an eccentric part (1) and a ring focal part (2), characterized in that: the up end of eccentric portion (1) and the lower terminal surface laminating of ring focus portion (2), ring focus portion (2) is including optics center (3), optics center (3) are provided with annular region (4) of a plurality of different degrees from inside to outside, optics center (3) are simultaneously at the X axle and the geometric centre of Y epaxial skew eccentric portion (1), eccentric portion (1) is located the second quadrant of eccentric portion (1) corresponding to its optics center (3) of left eye, is located the first quadrant of eccentric portion (1) corresponding to its optics center (3) of right eye.

2. An eccentric rim lens according to claim 1, wherein: the ring focal part (2) is in a concave transparent shape or a flat light shape.

3. An eccentric rim lens according to claim 1, wherein: the annular focus part (2) has constant internal luminosity at the optical center (3) and gradually decreases towards the periphery by 360 degrees from the optical center (3), and the annular focus part (2) at least has five annular areas (4).

4. An eccentric rim lens according to claim 3, wherein: the gradually decreasing amplitude of the annular areas (4) is 1-3 degrees.

5. An eccentric rim lens according to claim 1, wherein: the refractive index of each annular region (4) of the annular focal part (2) is between 1.50 and 1.74.

6. An eccentric rim lens according to claim 1, wherein: the sum of the thicknesses of the eccentric part (1) and the annular focal part (2) is less than 6 mm.