CN216210288U - Double-sided composite out-of-focus anti-myopia lens - Google Patents

Abstract

The utility model relates to a double-sided composite out-of-focus anti-myopia lens, and belongs to the technical field of lens preparation. The novel optical lens comprises a concave surface side close to an eyeball and a convex surface side facing to an object, wherein the convex surface side comprises a second refraction area positioned in a central area and a continuous first refraction area except the second refraction area, the second refraction area consists of a plurality of microlenses which are in contact distribution with each other, the second refraction area is a fan-shaped ring structure, an arc-shaped gradual change area is formed at the bottom opening of the fan-shaped ring of the second refraction area, and the gradual change area divides the whole lens into a far area of the upper half part and a near area of the lower half part.

Description

Double-sided composite out-of-focus anti-myopia lens

Technical Field

The utility model relates to a double-sided composite out-of-focus anti-myopia lens, and belongs to the technical field of lens preparation.

Background

At present, along with the higher and higher requirements of people on glasses, more multifunctional glasses lenses gradually enter the sight of people. Among them, there is a lens contributing to the inhibition of the further development of myopia, which has a function of focusing an image on a point in front of the retina of an eye in addition to focusing an image on the retina of the eye, and when a patient views an object using this lens, an image of the object is formed on the retina and an image is also formed on a point in front of the retina, so that the image of the object can be visually recognized and an effect of inhibiting the development of myopia can be obtained based on the image formed in front of the retina.

However, in practice, such lenses are found to be suitable for the wearer to look away from the home, have desirable visual effects and inhibit myopia, such as looking away outdoors and looking toward the blackboard after the lens is worn by students; however, when the lens is worn to observe only objects in close range, visual blurring and vertigo are significantly increased, visual fatigue is likely to occur, and visual acuity is further affected. However, when a student is in class, the student needs to watch the blackboard for a moment and needs to look at books with a head down for a moment, the sight line is frequently changed, and the student is inconvenient if frequently takes off and wears the glasses in the process and can also influence the class listening effect of the student.

However, in the existing lens with a plurality of circles of invisible star-ring lenticules on the surface of the lens, referring to fig. 4 and 5, although the effect of forming a non-focused light band in front of the retina can be achieved, due to the spacing between adjacent star-ring lenticule circles, when the eye pupil of a user rotates, the number of the lenses is seen in the range of the lenses, so that a clear-fuzzy-clear jump image type visual phenomenon is caused, and the visual fatigue of the user is increased.

In view of the above-mentioned defects, the present designer actively makes research and innovation to create a double-sided composite out-of-focus anti-myopia lens, so that the lens has more industrial utilization value.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a double-sided compound out-of-focus anti-myopia lens.

The utility model relates to a double-sided compound out-of-focus anti-myopia lens, which comprises a concave side close to an eyeball and a convex side facing an object, wherein the convex side comprises a second dioptric region positioned in a central region and a continuous first dioptric region except the second dioptric region, the second dioptric region consists of a plurality of microlenses in mutual contact distribution, the second dioptric region is a fan-shaped ring structure, an arc-shaped gradual change region is formed at the bottom opening of the fan-shaped ring of the second dioptric region, and the gradual change region divides the whole lens into a far region at the upper half part and a near region at the lower half part.

Furthermore, the concave surface side is a free-form surface peripheral defocusing structure. The peripheral light bottom is lower than the central region light intensity, and the light intensity needs to be reduced when the myopic eye looks near, so that the myopic deepening is prevented;

further, the refractive power of the second dioptric area is different from the refractive power of the first dioptric area 1.

Furthermore, the micro lenses are convex balls protruding outwards, the adjacent micro lenses are arranged in a circumscribed manner, and the diameter of each micro lens is 0.8 m. The micro lenses are not in clearance circumscribed design, so that the convex side is in a continuous state, when the pupil of a human eye rotates, the error of the number of the lenses is not large when the human eye sees the lens within the range of the lens, the imaging is stable, the lower light area is opened, and the image jump phenomenon cannot be generated when the human eye sees the near area; a plurality of micro lenses are designed to form a multi-point defocusing structure, and a virtual image is generated in front of a pupil through the micro lenses to delay elongation of an eye axis, so that eye fatigue is relieved, and myopia is prevented from further deepening;

furthermore, the circular angle of the sector ring is 241 degrees, the notch of the sector ring is vertically arranged downwards along the radial direction of the mirror surface, the diameter of the outer circle of the sector ring is 26mm, and the diameter of the inner circle of the sector ring is 10 mm. The second dioptric area is designed into a fan-shaped ring with a vertically downward notch, so that the second dioptric area closer to the lower lens expands towards two sides, and further, the interference of a small part of sight left in the upper lens to the second dioptric area can be avoided;

further, the second refractive zone is located in a distance zone, the near zone being a single vision lens for correcting myopia.

Further, a prism with an inward bottom is added in the near zone. Through the skew effect of prism, reduce the cohesion of eyeball when the person of wearing sees near, make the person of wearing can relax like seeing far when seeing near to reduced the long-time set of eye muscle, prevented that the axis of the eye from lengthening, prevented that the myopia from deepening.

By the scheme, the utility model at least has the following advantages:

(1) the concave side of the lens is of a curved surface defocusing structure, so that the peripheral light bottom is lower than the central region luminosity, and the luminosity needs to be reduced when a myopic eye looks near, thereby preventing the myopia from being deepened;

(2) the micro lenses in the lens have no clearance externally tangent design, so that the convex side is in a continuous state, when the pupil of a human eye rotates, the error of the number of the lenses is not large when the lens is seen in the range of the lens, the imaging is stable, the lower light area is opened, and the image jump phenomenon cannot be generated when the user looks at a near place; a plurality of micro lenses are designed to form a multi-point defocusing structure, and a virtual image is generated in front of a pupil through the micro lenses to delay elongation of an eye axis, so that eye fatigue is relieved, and myopia is prevented from further deepening;

(3) the second dioptric area in the lens is designed into a fan-shaped ring with a vertically downward notch, so that the second dioptric area closer to the lower lens is expanded towards two sides, and the interference of a small part of sight left in the upper lens to the second dioptric area can be further avoided;

(4) the prism with inward bottom is additionally arranged in the near area of the lens, and the cohesion of eyeballs when a wearer looks near is reduced through the deviation effect of the prism, so that the wearer can relax as far as looking when looking near, the long-time collection of eye muscles is reduced, the elongation of the axis of the eye is prevented, and the myopia is prevented from deepening.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic perspective view of a double-faced compound out-of-focus anti-myopia lens according to the present invention;

FIG. 2 is a schematic structural diagram of the convex side of the double-sided compound out-of-focus anti-myopia lens according to the present invention;

FIG. 3 is a schematic diagram of the structure of a second dioptric region of the double-sided compound out-of-focus anti-myopia lens according to the utility model;

FIG. 4 is a schematic view of the structure of the lens of a conventional multi-turn contact star ring microlens;

FIG. 5 is a schematic view of a partially enlarged structure of the lens of a conventional multi-turn contact star ring microlens;

wherein, in the figure;

10. a convex side; 20. a concave side;

1. a first refractive zone; 2. an island region; 3. a remote area; 4. a transition region; 5. a near zone;

21. a microlens.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

Referring to fig. 1 to 3, a double-sided compound out-of-focus anti-myopia lens according to a preferred embodiment of the utility model is characterized in that:

the near-eye optical lens comprises a concave side 20 close to an eyeball and a convex side 10 facing to an object, wherein the concave side 20 is in a curved defocusing structure, so that the light intensity of the periphery is lower than that of the central area, and the light intensity needs to be reduced when the near-eye looks near, thereby preventing the near-eye from deepening;

the convex surface side 10 comprises a second dioptric area 2 positioned in the central area and a continuous first dioptric area 1 except the second dioptric area 2, and the refractive power of the second dioptric area 2 is different from the refractive power of the first dioptric area 1; the second dioptric region 2 is composed of a plurality of microlenses 21 which are in contact distribution with each other, the microlenses 21 are convex spheres which are convex outwards, adjacent microlenses 21 are arranged in a circumscribed manner, and the diameters of the microlenses 21 are 0.8 m; the micro lenses 21 have no clearance external tangent design, so that the convex side 10 is in a continuous state, when the pupil of a human eye rotates, the error of the number of the lenses is not large when the human eye sees in the lens range, the imaging is stable, the lower light area is opened, and the image jump phenomenon cannot be generated when the human eye sees near; moreover, a plurality of micro lenses 21 are designed to form a multi-point defocusing structure, and a virtual image is generated in front of a pupil through the micro lenses 21, so that the elongation of the axis of the eye is delayed, the fatigue of the eyes is relieved, and the myopia is prevented from further deepening;

the second refraction area 2 is a fan-shaped ring structure, the circular angle of the fan-shaped ring is 241 degrees, the gap of the fan-shaped ring is vertically arranged downwards along the radial direction of the mirror surface, the diameter of the outer circle of the fan-shaped ring is 26mm, and the diameter of the inner circle of the fan-shaped ring is 10 mm; the second dioptric area 2 is designed into a fan-shaped ring with a vertically downward gap, so that the second dioptric area closer to the lower lens expands towards two sides, and further, the interference of a small part of sight left in the upper lens with the second dioptric area can be avoided;

an arc-shaped gradual change area 4 is formed at the bottom opening of a fan-shaped ring of the second refraction area 2, the gradual change area 4 divides the whole lens into a far area 3 at the upper half part and a near area 5 at the lower half part, the second refraction area 2 is positioned in the far area 3, the near area 5 is a single-vision lens for correcting myopia, a prism with an inward bottom is additionally arranged in the near area 5, the cohesion of eyeballs when a wearer looks near is reduced through the deviation effect of the prism, the wearer can relax as far as looking near, the long-time collection of eye muscles is reduced, the axis of the eye is prevented from being elongated, and the myopia is prevented from being deepened.

The working principle of the utility model is as follows:

when the lens is actually used and a wearer looks up and looks at a distance, the sight of the eyes more passes through the upper lens, so that the first refraction area 1 focuses an image on the retina of the eyes, namely an image of an object is formed on the retina, the effect of correcting myopia is realized, and meanwhile, the second refraction area focuses an image on a micro-lens 21 point in front of the retina of the eyes to play a role of inhibiting the further development of the myopia; when the wearer lowers the head to observe nearby things (such as reading books), the sight line of the eyes moves downwards on the lenses, at the moment, the sight line penetrates through the lower lenses more, the interference of the second dioptric area can be obviously avoided, the phenomena of blur, dizziness, image jump and the like during near-viewing are greatly reduced,

in addition, the second dioptric area is designed into a fan-shaped ring with a vertically downward notch, so that the second dioptric area closer to the lower lens expands towards two sides, and further, the interference of a small part of sight left in the upper lens with the second dioptric area can be avoided;

meanwhile, the basic lens adopts a double-sided composite out-of-focus design formed by out-of-focus design of the concave surface of the lens and multi-point out-of-focus of the convex surface, a virtual image is generated in front of a pupil through the front micro lens to delay the elongation of an eye axis, the out-of-focus design is used at the back, the out-of-focus principle is that the peripheral light bottom is lower than the central region luminosity, and the luminosity is required to be reduced when a myopic eye looks near, so that the myopic progress can be prevented from being deepened.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;

and finally: the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a two-sided compound out of focus myopia prevention lens which characterized in that: the novel optical lens comprises a concave surface side close to an eyeball and a convex surface side facing to an object, wherein the convex surface side comprises a second refraction area positioned in a central area and a continuous first refraction area except the second refraction area, the second refraction area consists of a plurality of microlenses which are in contact distribution with each other, the second refraction area is a fan-shaped ring structure, an arc-shaped gradual change area is formed at the bottom opening of the fan-shaped ring of the second refraction area, and the gradual change area divides the whole lens into a far area of the upper half part and a near area of the lower half part.

2. The double-sided compound out-of-focus anti-myopia lens according to claim 1, wherein: the concave surface side is a free-form surface peripheral defocusing structure.

3. The double-sided compound out-of-focus anti-myopia lens according to claim 1, wherein: the refractive power of the second dioptric area is different from the refractive power of the first dioptric area (1).

4. The double-sided compound out-of-focus anti-myopia lens according to claim 1, wherein: the micro lenses are convex balls protruding outwards, the adjacent micro lenses are arranged in a circumscribed mode, and the diameter of each micro lens is 0.8 m.

5. The double-sided compound out-of-focus anti-myopia lens according to claim 1, wherein: the circular angle of sector ring is 241 degrees, and the breach of sector ring is vertical downward along the radial setting of mirror surface, the outer circle diameter of sector ring is 26mm, and interior circle diameter is 10 mm.

6. The double-sided compound out-of-focus anti-myopia lens according to claim 1, wherein: the second refractive zone is located in a distance zone, the near zone being a single vision lens for correcting myopia.

7. The double-sided compound out-of-focus anti-myopia lens according to claim 1, wherein: a prism with an inward base is also added to the near zone.

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