Glasses

Abstract

The utility model belongs to the field of optical glasses, and particularly relates to a pair of glasses, which comprises a glasses frame and lenses, the two lenses are respectively arranged on the glasses frame, each lens comprises a first area, the projection of the center of the first area in the vertical direction coincides with the center of the corresponding lens, the first area is used for watching a distant object, and the first area comprises a first sub-area; the projection of the center of the second area in the horizontal direction coincides with the center of the lens, the second area is used for watching nearby objects, and the second area comprises a second sub-area; the first sub-region is connected with the second sub-region, and the diopter of the second sub-region is greater than that of the first sub-region; the first out-of-focus lens group is arranged around the first sub-region, and the diopter of the first out-of-focus lens group is smaller than that of the first sub-region; and the second out-of-focus lens group is arranged around the second sub-region, and the diopter of the second out-of-focus lens group is smaller than that of the second sub-region. By means of the arrangement, good use experience is provided, and eye axis extension is restrained.

Description

Technical Field

[0001] The utility model belongs to the field of optical glasses, and in particular relates to a pair of glasses. Background Art

[0002] The optical glasses worn in daily life have the same diopter in the entire area of ​​the lens. For people with myopia, they can see nearby objects clearly but cannot see distant objects clearly. That is to say, when looking far away, in order to image distant objects on the retina, it is necessary to use glasses to adjust the refraction direction of light to ensure the normal imaging of distant objects. However, people with myopia can clearly see nearby objects. If a certain diopter is superimposed at the same position, the eyes will have a certain discomfort. Therefore, the setting of the diopter of glasses needs to consider both near and far vision, that is, to ensure that the viewer can see distant objects as much as possible without affecting the near vision effect, and it needs to be adjusted to a balanced state of near and far vision. If the degree of myopia of the eyes is large, and only consider seeing distant objects as clearly as possible, a lens with a large diopter will be superimposed, and there will be a certain discomfort when looking at nearby objects when wearing the lens.

[0003] Myopic defocus is believed to be able to effectively inhibit the development of myopia and may even reverse the development of true myopia. Myopic defocus means that when the human eye focuses on one image, other images can be imaged in front of the retina, which can stimulate the shortening of the eye axis. Studies have shown that the difference in defocus areas when the human eye sees far away can better inhibit the development of myopia. Utility Model Content

[0004] The present invention is proposed based on the above-mentioned needs of the prior art. The technical problem to be solved by the present invention is to provide a pair of glasses to provide a good user experience and form myopic defocus stimulation.

[0005] In order to solve the above problems, the technical solution provided by the utility model includes:

[0006] Provided are glasses, comprising: a frame and a lens, wherein two lenses are respectively arranged on the frame, the lens comprising a first area, a projection of the center of which in the vertical direction coincides with the center of the lens, the first area is used to view distant objects, and the first area comprises a first sub-area; a second area, a projection of the center of which in the horizontal direction coincides with the center of the lens, the second area is used to view nearby objects, and the second area comprises a second sub-area; the first sub-area and the second sub-area are connected, and the refractive power of the second sub-area is greater than the refractive power of the first sub-area; a first defocus lens group is arranged around the first sub-area, and the refractive power of the first defocus lens group is less than the refractive power of the first sub-area; and a second defocus lens group is arranged around the second sub-area, and the refractive power of the second defocus lens group is less than the refractive power of the second sub-area.

[0007] Through the above arrangement, the first area for distant vision and the second area for near vision are respectively divided on the complete lens, and the relative position relationship between the first area and the second area is consistent with the eye use scenario, so that the object will be imaged through the first area when looking at a distance, and the object will be imaged through the second area when looking at a near. At the same time, the first defocus lens group and the second defocus lens group are arranged outside the first sub-area and the second sub-area, aiming to apply corresponding defocus stimulation in the appropriate area, and then the myopic defocus stimulation is formed by the external object passing through the corresponding area, so as to pull the retina to move forward, generate a force that tends to shorten the eye axis, and effectively inhibit the elongation of the eye axis.

[0008] Preferably, the first area and the second area at least partially overlap to form an overlapping area, and the refractive power of the overlapping area gradually decreases along a preset direction, and the preset direction is the direction from the center of the second area to the center of the first area.

[0009] Through the above arrangement, the diopter transition between the first sub-area and the second sub-area is normal, thereby improving the eye comfort.

[0010] Preferably, both the first area and the second area are circular areas.

[0011] The above settings are used to conform to the shape of the viewer's field of vision when viewing an object, thereby improving the viewer's usage experience.

[0012] Preferably, the area where the first defocus lens is arranged corresponds to the viewer's field of view angle of 5° to 30°.

[0013] Because when looking far away, the human eye can receive defocus stimuli that are closer to the center of the field of vision and have a larger defocus amount, while not causing greater interference to the viewer, a larger defocus stimulus can better inhibit the elongation of the eye axis.

[0014] Preferably, the area where the second defocus lens is arranged corresponds to the viewer's field of view of 15° to 60°.

[0015] When the human eye looks close, if it receives a defocus stimulus close to the center of the visual field or a large amount of defocus stimulus, it will cause visual discomfort. Therefore, the defocus stimulus is applied to the field of view angle that is relatively far from the center of the visual field.

[0016] Preferably, the diopter of the first sub-region is adapted to the diopter of the viewer's eyes.

[0017] Through the above arrangement, when the viewer looks far away, the distant object can be imaged on the retina of the eye under the light processing of the first lens, which serves as the basis for forming a defocus stimulus.

[0018] Preferably, the first defocusing lens group comprises a plurality of first sub-lens elements, the first sub-lens elements are first micro-lenses, and the plurality of first micro-lenses are arranged around the center of the first region around the first sub-region.

[0019] Through the above arrangement, when looking far away, the object is imaged on the retina through the first sub-region and is imaged in front of the retina through the first microlens, thereby forming myopic defocus to inhibit the elongation of the eye axis.

[0020] Preferably, the first sub-lens element is a first lens belt, and the plurality of first lens belts are arranged around the first sub-region and around the center of the first region.

[0021] Through the above arrangement, when looking far away, the object is imaged on the retina through the first sub-area and is imaged in front of the retina through the first lens zone, thereby forming myopic defocus to inhibit the elongation of the eye axis.

[0022] Preferably, the second defocusing lens group comprises a plurality of second sub-lens elements, the second sub-lens elements are second micro-lenses, and the plurality of second micro-lenses are arranged around the second sub-region and around the center of the second region.

[0023] Through the above arrangement, when looking at close objects, the object is imaged on the retina through the second sub-area and is imaged in front of the retina through the second microlens, thereby forming myopic defocus to inhibit the elongation of the eye axis.

[0024] Preferably, the second sub-lens element is a second lens belt, and the plurality of second lens belts are arranged around the second sub-region and around the center of the second region.

[0025] Through the above arrangement, when looking at close objects, the object is imaged on the retina through the second sub-area and is imaged in front of the retina through the second lens zone, thereby forming myopic defocus to inhibit the elongation of the eye axis.

[0026] Preferably, the distance between adjacent sub-lens elements is 0-2 mm.

[0027] The above arrangement is used to form a uniform defocus stimulation in the eyes while ensuring the viewing comfort of the viewer.

[0028] Preferably, the distance between adjacent sub-lens elements is 0-5 mm.

[0029] The above arrangement is used to form a uniform defocus stimulation in the eyes while ensuring the viewing comfort of the viewer.

[0030] Preferably, the refractive power of the first defocus lens differs from the refractive power of the first sub-region by 0.1D-5D.

[0031] The above-mentioned setting can form a certain amount of defocus stimulation when viewing distant objects.

[0032] Preferably, the refractive power of the second defocus lens differs from the refractive power of the second sub-region by 0.1D-5D.

[0033] The above-mentioned setting can form a certain amount of defocus stimulation when viewing nearby objects.

[0034] Preferably, the first area is located above the lens, and the second area is at least partially located below the lens.

[0035] The above settings are adapted to the viewer's eye conditions, so that the user has a good viewing experience when wearing glasses.

[0036] Compared with the prior art, the present invention is configured for distant and near viewing situations respectively to greatly improve the user experience of the glasses. The division of the areas for near and distant viewing is in accordance with the eye usage situation to reduce interference to the eyes. On the basis of not interfering with normal use, a defocus area is set outside the near viewing area and the far viewing area, so that objects pass through the glasses and form myopic defocus stimulation in combination with the imaging of the near viewing area and the far viewing area, thereby effectively inhibiting the elongation of the eye axis. Of course, the amount of defocus stimulation applied in different areas and different scenes is also different, and is also set according to the eye usage situation, which is comfortable and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0038] Figure 1This is a schematic diagram of the imaging of distant objects when the eyes are normal;

[0039] Figure 2 This is a schematic diagram of the imaging of distant objects when the eyes are nearsighted;

[0040] Figure 3 A schematic diagram of imaging of myopic defocus in the eye;

[0041] Figure 4 This is a schematic diagram of the lens structure of the glasses in the embodiment of the utility model;

[0042] Figure 5 It is a schematic diagram of the lens structure of another pair of glasses in an embodiment of the utility model;

[0043] Figure 6 This is a schematic diagram of the area division of the lens in the embodiment of the utility model;

[0044] Figure 7 Schematic diagram of the eye's convergence angle.

[0045] Reference numerals:

[0046] 1. Lens; 101. Third center; 2. First area; 201. First sub-area; 202. First center; 3. Second area; 301. Second sub-area; 302. Second center; 4. First defocus lens group; 401. First microlens; 402. First lens belt; 5. Second defocus lens group; 501. Second microlens; 502. Second lens belt; 6. Overlapping area. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "connected" should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral connection can be a mechanical connection, or an electrical connection can be a direct connection, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] The terms "top", "bottom", "above", "lower", and "on" used throughout the description are relative to the relative positions of components of a device, such as the relative positions of the top and bottom substrates within a device. It is understood that devices are multifunctional regardless of their orientation in space.

[0050] To facilitate understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.

[0051] This embodiment provides a pair of glasses, such as Figure 1-Figure 7 shown.

[0052] The glasses include lenses and a frame, and the frame is used for supporting the lenses.

[0053] When distant objects are imaged under good eye conditions, the image will fall on the viewer's retina. Figure 1 As shown in the figure, the eyeball of a myopic user is deformed and the eye axis is elongated, as shown in the figure. Figure 2 As shown, myopic people see distant objects as blurry or unclear, but can see nearby objects clearly.

[0054] For users with myopia, due to the elongation of the eye axis or other factors, when looking far away or far away, the parallel light of distant objects enters the eye and focuses in front of the retina, so that the distant objects cannot be clearly imaged on the retina, that is, the myopic people cannot see the distant objects clearly. Therefore, myopia glasses are introduced to adjust the angle of light entering the eye so that distant objects can be imaged on the retina.

[0055] Generally, when people look far away, distant objects are usually in the upper area compared with the emmetropia field of view; when people look near, nearby objects are usually in the lower area compared with the emmetropia field of view. Therefore, the first area 2 is arranged to be located above the lens, and the second area 3 is at least partially located below the lens. This arrangement is consistent with the user's eye usage. The user will look far away through the first area 2 and look near through the second area 3. The relative position relationship between the first area 2 and the second area 3 is consistent with normal eye usage.

[0056] like Figure 7 As shown in Figure 1, when both eyes view an object A, the convergence of both eyes causes the object A to fall on the corresponding position of the retina, forming an angle θ. Ais the convergence angle. When the position of object A changes from far to near, the size of the convergence angle also changes accordingly. This change is accomplished by the eye muscles. When the viewer looks at a distant object, since the object is far away, the area through which the viewer looks through the lens will not change much, and will be located above the center of the visual field when looking straight; when the viewer looks at a nearby object, the closer the object is, the larger the convergence angle will be, and the area formed by the convergence angle will be closer to the side of the nose. In other words, when the viewer looks at a distant object, the image will be formed through the area on the lens that is above the center of the lens; when the viewer looks at a nearby object, the image will be formed through the area on the lens that is inside the center of the lens.

[0057] Based on the above eye conditions, the following settings are made, such as Figure 6 As shown, the first area 2 has a first center 202, the second area 3 has a second center 302, and the lens has a third center 101, and the third center 101 corresponds to the center of the viewer's field of vision when looking straight ahead. The projection of the first center 202 in the vertical direction coincides with the third center 101, and the projection of the second center 302 in the horizontal direction coincides with the third center 101. The areas divided by the above settings correspond to the areas actually passed through when wearing glasses, which conforms to the actual eye use situation and is a prerequisite for improving eye comfort.

[0058] Furthermore, when a viewer observes an object, the observation field formed in the eye is circular, so the first area 2 and the second area 3 are both set to be circular areas to correspond to the shape of the field angle.

[0059] In order to ensure a natural transition between the first region 2 and the second region 3, the first region 2 and the second region 3 at least partially overlap to form an overlapping region 6, the first region 2 includes a first sub-region 201, the first sub-region 201 and the overlapping region 6 together form the first region 2, the second region 3 includes a second sub-region 301, the second sub-region 301 and the overlapping region 6 together form the second region 3. The first sub-region 201 and the second sub-region 301 are connected.

[0060] Furthermore, the diopter of the first sub-area 201 is set to match the eyes of the viewer, that is, the diopter in the first sub-area 201 is the same as the diopter of the normal corrective lens of the user, thereby ensuring that distant objects can be imaged on the retina of the viewer's eyes. Since myopic people can still see nearby objects clearly without wearing any optical lenses, the diopter of the second sub-area 301 is set to be greater than the diopter of the first sub-area 201, and at this time, nearby objects can be imaged on the retina of the viewer. The diopter of the overlapping area 6 gradually decreases along a preset direction, and the preset direction is the direction from the center of the second area 3 to the center of the first area 2. The above setting is used to achieve a smooth transition between the first sub-area 201 and the second sub-area 301.

[0061] In order to inhibit the elongation of the eye axis to a certain extent, Figure 3 As shown, this can be achieved by forming a myopic defocus stimulus in the eye. The myopic defocus stimulus refers to the situation where a portion of the light from an external object enters the eye and is imaged on the retina, while the other portion is imaged in front of the retina, and a defocus stimulus is formed at this time. When the viewer can clearly see a portion of the picture, but at the same time there is a portion of the blurred picture, there will be a tendency to want to see the blurred picture clearly, thereby prompting the retina to move forward, so as to suppress the elongation of the eye axis to a certain extent, and prevent the deepening of myopia.

[0062] Based on the above principle, Figure 4 and Figure 5 As shown, the periphery of the first area 2 suitable for distant vision and the periphery of the second area 3 suitable for near vision are respectively set.

[0063] Specifically, a first defocus lens group 4 is arranged outside the first sub-region 201, and the diopter of the first defocus lens group 4 is greater than the diopter of the first sub-region 201. Specifically, the first sub-lens element in the first defocus lens group 4 can be a myopic lens with a diopter greater than the diopter of the first sub-region 201, or a hyperopic lens. Through the above arrangement, a distant object is imaged in front of the viewer's retina through the first defocus lens group 4, and the image of the distant object falling on the retina through the first sub-region 201 is superimposed, forming a myopic defocus stimulus together, thereby inhibiting the elongation of the eye axis.

[0064] Furthermore, the refractive power of the first defocus lens differs from the refractive power of the first sub-region 201 by 0.1D-5D. The above configuration is used to provide an appropriate stimulation amount.

[0065] The area where the first defocus lens group 4 is set corresponds to the viewer's field of view angle of 5° to 30°. When looking far away, the human eye can receive defocus stimulation that is closer to the center of the field of view and has a larger defocus amount. Without causing great interference to the viewer, the larger defocus stimulation amount can better inhibit the elongation of the eye axis.

[0066] Further, the first sub-lens element can be a first microlens 401, and a plurality of first microlenses 401 are arranged around the first center 202 around the first sub-region 201, so as to reduce the influence of defocus stimulation on the actual viewing experience. A plurality of first microlenses 401 are arranged in a multi-layer arc form, and adjacent layers are arranged equidistantly, and adjacent first microlenses 401 in each layer are also arranged equidistantly and the first microlenses 401 in each layer have the same refractive power, aiming to form a uniform stimulation in the viewer's eyes. Further, the distance between the first microlenses 401 is 0 to 2 mm, and such an arrangement is used to set the density of the first microlenses 401 within a larger range, thereby increasing the amount of defocus stimulation and strengthening the force to suppress the elongation of the eye axis.

[0067] Furthermore, the first sub-lens element may also be a first lens belt 402, and a plurality of first lens belts 402 are arranged around the first center 202 around the first sub-region 201. Preferably, the plurality of first lens belts 402 are arranged at equal intervals so that external objects form uniform defocus stimulation in the eye. Similar to the arrangement of the plurality of first micro-lenses 401, the distance between adjacent first lens belts 402 is 0 to 2 mm.

[0068] A second defocus lens group 5 is arranged outside the second sub-region 301, and the diopter of the second defocus lens group 5 is greater than the diopter of the second sub-region 301. Specifically, the second sub-light-transmitting element in the second defocus lens group 5 can be a myopic lens or a hyperopic lens. Through the above arrangement, a near object is imaged in front of the viewer's retina after passing through the second defocus lens group 5, and the image of the near object falling on the retina formed by passing through the second sub-region 301 is superimposed, forming a myopic defocus stimulus together, thereby inhibiting the elongation of the eye axis.

[0069] Furthermore, the refractive power of the second defocus lens differs from the refractive power of the second sub-region 301 by 0.1D-5D. The above configuration is used to provide an appropriate stimulation amount.

[0070] The area where the second defocus lens group 5 is set corresponds to the field of view angle of 15° to 60°. When the human eye looks at something close, if the human eye receives a defocus stimulus close to the center of the field of view or a large amount of defocus stimulus, it will cause visual discomfort, so the defocus stimulus is set to be applied to the field of view angle that is relatively far from the center of the field of view.

[0071] Further, the second sub-lens element can be a second microlens 501, and a plurality of second microlenses 501 are arranged around the second center 302 around the second sub-region 301, so as to reduce the influence of defocus stimulation on the actual viewing experience. The arrangement of the second microlenses 501 is similar to that of the first microlenses 401, and is arranged in a multi-layer arc form, with adjacent layers arranged equidistantly, and adjacent second microlenses 501 in each layer are also arranged equidistantly and the second microlenses 501 in each layer have the same refractive power, aiming to form a uniform stimulation in the viewer's eyes. Further, the distance between the second microlenses 501 is 0 to 5 mm, so as to set the density of the second microlenses 501 within a relatively small range, and provide an appropriate amount of defocus stimulation without affecting the viewing effect, thereby suppressing the elongation of the eye axis.

[0072] Furthermore, the second sub-lens element may also be a second lens belt 502.

[0073] A plurality of second lens bands 502 are arranged around the second center 302 around the second sub-area 301. Preferably, the plurality of second lens bands 502 are arranged at equal intervals so that external objects form uniform defocus stimulation in the eye. Similar to the arrangement of the plurality of second microlenses 501, the distance between adjacent second lens bands 502 is 0 to 5 mm.

[0074] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A pair of glasses, characterized in that: include: Frames, The two lenses are respectively arranged on the frame, and the lenses include A first area, the projection of the center of which in the vertical direction coincides with the center of the lens, the first area is used for viewing distant objects, and the first area includes a first sub-area; a second area, the projection of the center of which in the horizontal direction coincides with the center of the lens, the second area is used for viewing near objects, and the second area includes a second sub-area; The first sub-region is connected to the second sub-region, and the refractive power of the second sub-region is greater than the refractive power of the first sub-region; a first defocusing lens group, arranged around the first sub-region, wherein the refractive power of the first defocusing lens group is smaller than the refractive power of the first sub-region; A second defocusing lens group is arranged around the second sub-region, and the refractive power of the second defocusing lens group is smaller than the refractive power of the second sub-region.

2. The glasses according to claim 1, characterized in that The first area and the second area at least partially overlap to form an overlapping area, and the refractive power of the overlapping area gradually decreases along a preset direction, and the preset direction is the direction from the center of the second area to the center of the first area.

3. The glasses according to claim 1, characterized in that: The first area and the second area are both circular areas.

4. The glasses according to claim 1, characterized in that: The area where the first defocus lens is arranged corresponds to a viewer's field of view angle of 5° to 30°.

5. The glasses according to claim 1, characterized in that: The area where the second defocus lens is arranged corresponds to a viewer's field of view of 15° to 60°.

6. The glasses according to claim 1, characterized in that: The refractive power of the first sub-region is adapted to the refractive power of the viewer's eyes.

7. The glasses according to claim 1, characterized in that: The first defocusing lens group includes a plurality of first sub-lens elements, wherein the first sub-lens elements are first micro-lenses, and the plurality of first micro-lenses are arranged around the center of the first region around the first sub-region.

8. The glasses according to claim 7, characterized in that: The first sub-lens element is a first lens zone, and a plurality of the first lens zones are arranged around the first sub-region and around the center of the first region.

9. The glasses according to claim 1, characterized in that: The second defocusing lens group includes a plurality of second sub-lens elements, wherein the second sub-lens elements are second micro-lenses, and the plurality of second micro-lenses are arranged around the second sub-region and the center of the second region.

10. The glasses according to claim 9, characterized in that: The second sub-lens element is a second lens zone, and a plurality of the second lens zones are arranged around the second sub-region and around the center of the second region.

11. The glasses according to claim 7 or 8, characterized in that: The distance between adjacent sub-lens elements is 0 to 2 mm.

12. The glasses according to claim 9 or 10, characterized in that: The distance between adjacent sub-lens elements is 0 to 5 mm.

13. The glasses according to claim 1, characterized in that: The refractive power of the first defocus lens differs from the refractive power of the first sub-region by 0.1D-5D.

14. The glasses according to claim 1, characterized in that: The refractive power of the second defocus lens differs from the refractive power of the second sub-region by 0.1D-5D.

15. The glasses according to claim 1, characterized in that: The first area is located above the lens, and the second area is at least partially located below the lens.

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