Portable myopia-preventing glasses

Abstract

The invention provides portable myopia-preventing glasses which comprise a glasses frame, glasses legs are connected to the two sides of the glasses frame through hinge assemblies, lens mounting grooves are formed in the glasses frame, lenses are arranged in the lens mounting grooves, the lenses comprise myopia-preventing lenses and myopia-correcting lenses, and the myopia-preventing lenses and the myopia-correcting lenses are arranged on the glasses frame. The myopia-preventing lens and the myopia-correcting lens are provided with a total-reflection free-form surface mirror and a plane spectroscope. Through the total reflection free-form surface mirror and the plane spectroscope, a short-distance object is imaged into a long-distance virtual image, an eye crystalline lens is adjusted, eye adjusting force is reduced, eye fatigue is greatly relieved, and therefore myopia is effectively prevented. The myopia correcting lenses are arranged, so that the requirement of correcting the vision of the myopia patient can be met, and the visual clarity is improved. The myopia-preventing lenses and the myopia-correcting lenses are detachably placed in the lens mounting grooves, so that a user can flexibly select and replace the lenses according to own requirements.

Description

Technical Field

[0001] The present invention relates to the field of anti-myopia glasses, and more particularly, to a portable anti-myopia glasses. Background Art

[0002] With the popularization of electronic devices, people's eye-using time is getting longer and longer, and the myopia problem is becoming increasingly serious. Long-term close eye use can cause eye fatigue, which in turn increases the risk of myopia.

[0003] Chinese Patent Application No.: CN201711189586.0 discloses an invention of a pair of glasses, including a frame and a spectacle frame. The frame includes left and right frames. A nose bridge accommodating hole is provided on each of the left and right frames. A nose bridge is installed in the nose bridge accommodating hole. The nose bridge and the accommodating hole are detachably connected through a spherical connecting member; the nose bridge and the frame are connected through a spherical connecting member and a nose bridge hole. The nose bridge can freely rotate to adjust the angle to meet different nose bridge sizes. In a detachable manner, it is convenient to replace, and the metal material is more wear-resistant and has a long service life.

[0004] Currently, there are some deficiencies in common myopia prevention and correction products on the market. Traditional myopia glasses are mainly for people who are already myopic to help them correct their vision, but the effect on preventing myopia is not ideal. After many people use their eyes closely for a long time, their eyes are prone to fatigue, and existing glasses products fail to effectively relieve this fatigue, resulting in an increasing incidence of myopia. Therefore, we have made improvements and proposed a portable anti-myopia glasses. Summary of the Invention

[0005] The purpose of the present invention is to address the problems raised in the existing background art. To achieve the above-mentioned invention purpose, the present invention provides the following technical solution: A portable anti-myopia glasses, including a frame, the two sides of the frame are connected with temple arms through a hinge assembly, a lens mounting groove is provided on the frame, a lens is provided in the lens mounting groove, the lens includes a myopia prevention lens and a myopia correction lens, a total reflection free-form mirror and a planar beam splitter are provided on the myopia prevention lens and the myopia correction lens, and the calculation formula for the imaging distance of the total reflection free-form mirror and the planar beam splitter is:

[0006]

[0007] Where: U is the object distance, V is the image distance, and f is the focal length;

[0008] Through the total reflection free-form mirror and the planar beam splitter, a nearby object with an object distance of u forms a virtual image at a long distance, with an image distance of v, converting the nearby object into a distant object to adjust the eye's lens to prevent myopia.

[0009] As a preferred technical solution of the present invention, the hinge assembly includes a first hinge frame, a first hinge rotation shaft, a second hinge frame, and a second hinge rotation shaft, and the temple includes a first temple and a second temple.

[0010] As a preferred technical solution of the present invention, the first temple is connected to the first hinge frame and is movably fixed through the first hinge rotation shaft, and the second temple is connected to the second hinge frame and is movably fixed through the second hinge rotation shaft.

[0011] As a preferred technical solution of the present invention, a nose bridge is provided in the middle of the spectacle frame, and a rubber pad is provided on the outer surface of the nose bridge.

[0012] As a preferred technical solution of the present invention, an upper through hole for lens installation is provided in the upper part of the spectacle frame, a side strip hole of the spectacle frame is provided on the inner side edge of the spectacle frame, and a lower hole groove is provided in the lower part of the spectacle frame.

[0013] As a preferred technical solution of the present invention, the side strip hole of the spectacle frame and the lower hole groove are provided with a 3 / 4 empty groove on the inner side of the spectacle frame, and the side strip hole of the spectacle frame and the lower hole groove are of a closed structure on the outer side of the spectacle frame.

[0014] As a preferred technical solution of the present invention, for the total reflection free-form mirror and the planar beam splitter, through the optical curved mirror, the calculation formula of the accommodation: Accommodation D = 1 / distance (m)

[0015] Under normal circumstances, when the eye looks at an object at a distance of d, the accommodation is D1 = 1 / d;

[0016] After using this myopia prevention lens, the eye sees a virtual image at a distance of D, and at this time the accommodation is D2 = 1 / D.

[0017] As a preferred technical solution of the present invention, the accommodation of the total reflection free-form mirror and the planar beam splitter = 1 / 5 = 0.18 D;

[0018] When the eye looks at a nearby object, the accommodation is used to make the object clearly imaged on the retina; the myopia prevention lens forms the nearby object into a virtual image at a long distance, so that the accommodation that the eye needs to use is greatly reduced, reducing the fatigue of the eye.

[0019] As a preferred technical solution of the present invention, the myopia prevention lens and the myopia correction lens can be detachably placed in the lens installation groove.

[0020] A usage method of a portable myopia prevention glasses, comprising the following steps:

[0021] Step 1: Unfold the first temple and the second temple connected to both sides of the spectacle frame through the hinge assembly to ensure that the temples can firmly support the glasses.

[0022] Step 2: Place the spectacle frame in front of the eyes, making the rubber pads on the nose bridge fit the nose to provide comfortable support; adjust the position of the temples so that the glasses are firmly worn on the head.

[0023] Step 3: According to one's own vision condition, choose to use anti-myopia lenses or corrective myopia lenses; choose anti-myopia lenses for preventing myopia; choose corrective myopia lenses for those who need to correct myopia for vision.

[0024] Step 4: Adjust the imaging distance: According to the optical imaging principle, the relationship among the object distance u, the image distance v, and the focal length f satisfies 1 / u + 1 / v = 1 / f; when using anti-myopia lenses, through the total reflection free-form mirror and the planar beam splitter, a nearby object with object distance u forms a virtual image at a far distance with image distance v, converting the nearby object into a far-distance object to adjust the eye's lens for preventing myopia.

[0025] Step 5: Normal use: After wearing the glasses, carry out daily study, work, or other activities that require eye use; the glasses will convert nearby objects into virtual images at a far distance, thereby adjusting the eye's lens to achieve the effect of preventing myopia.

[0026] Step 6: Store the glasses: After use, fold the temples through the hinge rotating shaft for easy carrying and storage.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Effectively prevent myopia: Through the total reflection free-form mirror and the planar beam splitter, a nearby object forms a virtual image at a far distance, adjusting the eye's lens, reducing the eye's accommodation ability, greatly alleviating eye fatigue, and thus effectively preventing the occurrence of myopia.

[0028] 2. Correct myopia vision: Equipped with corrective myopia lenses, which can meet the needs of myopic patients to correct their vision and improve visual clarity.

[0029] 3. Comfortable wearing: The outer surface of the nose bridge of the spectacle frame is provided with rubber pads, which can provide comfortable support and reduce the pressure on the nose when wearing.

[0030] 4. Good portability: The temples are connected through the hinge assembly and can be folded after use, which is convenient for carrying and storage, enabling people to use them anytime and anywhere to protect eye health.

[0031] 5. High flexibility: The anti-myopia lenses and the corrective myopia lenses can be detachably placed in the lens mounting grooves, and the user can flexibly choose and replace the lenses according to their own needs.

[0032] 6. Improve eye - using safety: This pair of glasses can help users maintain good eye - using habits during daily study, work, and other eye - using activities, reducing the risk of myopia caused by long - term close - range eye use.

[0033] 7. Wide range of applications: It is applicable to people with different vision conditions. Whether it is people who need to prevent myopia or myopia patients, they can all benefit from it. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram provided by the present invention;

[0035] Figure 2 It is a schematic partial - structure diagram of the lens provided by the present invention;

[0036] Figure 3 It is a schematic front - view structural diagram provided by the present invention;

[0037] Figure 4 It is a schematic left - view structural diagram provided by the present invention;

[0038] Figure 5 It is a schematic top - view structural diagram provided by the present invention;

[0039] Figure 6 It is a schematic principle diagram provided by the present invention.

[0040] Reference numerals in the figures:

[0041] 1. Frame; 2. Temple; 201. First temple; 202. Second temple; 3. Hinge assembly; 301. First hinge bracket; 302. First hinge rotation shaft; 303. Second hinge bracket; 304. Second hinge rotation shaft; 4. Lens mounting groove; 5. Lens; 501. Myopia - prevention lens; 502. Myopia - correction lens; 6. Nose bridge; 7. Upper through - hole for lens mounting; 8. Side - strip hole of the frame; 9. Lower hole groove; 10. Total - reflection free - form mirror; 11. Planar beam splitter. DETAILED DESCRIPTION OF THE INVENTION

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0043] Accordingly, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0044] Embodiment 1: Please refer to Figures 1-6 , a portable anti-myopia glasses, including a frame 1, two temple arms 2 are connected to both sides of the frame 1 through a hinge assembly 3, a lens mounting groove 4 is provided on the frame 1, a lens 5 is arranged in the lens mounting groove 4, the lens 5 includes a myopia prevention lens 501 and a myopia correction lens 502, a total reflection free-form mirror 10 and a planar beam splitter 11 are arranged on the anti-myopia lens 5 and the myopia correction lens 502, and the calculation formula for the imaging distance of the total reflection free-form mirror 10 and the planar beam splitter 11 is:

[0045]

[0046] Where: U is the object distance, V is the image distance, and f is the focal length;

[0047] Through the total reflection free-form mirror 10 and the planar beam splitter 11, an object at a short distance with an object distance of u forms a virtual image at a long distance with an image distance of v, converting the object at a short distance into an object at a long distance to adjust the eye's lens to prevent myopia.

[0048] The hinge assembly 3 includes a first hinge bracket 301, a first hinge rotation shaft 302, a second hinge bracket 303, and a second hinge rotation shaft 304. The temple arm 2 includes a first temple arm 201 and a second temple arm 202.

[0049] The first temple arm 201 is connected to the first hinge bracket 301 and is movably fixed through the first hinge rotation shaft 302. The second temple arm 202 is connected to the second hinge bracket 303 and is movably fixed through the second hinge rotation shaft 304.

[0050] A nose bridge 6 is arranged in the middle of the frame 1, and a rubber pad is arranged on the outer surface of the nose bridge 6.

[0051] An upper lens mounting through hole 7 is arranged on the upper part of the frame 1, a frame side hole 8 is provided on the inner side edge of the frame 1, and a lower hole groove 9 is arranged on the lower part of the frame 1.

[0052] The lower hole groove 9 of the side strip hole 8 of the spectacle frame has a 3 / 4 empty groove opened on the inner side of the spectacle frame 1, and the lower hole groove 9 of the side strip hole 8 of the spectacle frame is a closed structure on the outer side of the spectacle frame 1.

[0053] The total reflection free-form mirror 10 and the planar beam splitter 11. Through the optical curved mirror, the calculation formula of the accommodation power: Accommodation power D = 1 / distance m

[0054] Under normal circumstances, when the eye looks at an object at a distance of d, the accommodation power is D1 = 1 / d;

[0055] After using this myopia prevention lens 501, the eye sees a virtual image at a distance of D. At this time, the accommodation power is D2 = 1 / D.

[0056] The accommodation power of the total reflection free-form mirror 10 and the planar beam splitter 11 = 1 / 5 = 0.18 D;

[0057] When the eye looks at a nearby object, the accommodation power is used to make the object clearly imaged on the retina; the myopia prevention lens 501 forms the nearby object into a virtual image at a long distance, so that the accommodation power that the eye needs to use is greatly reduced, reducing eye fatigue.

[0058] The myopia prevention lens 501 and the myopia correction lens 502 can be detachably placed in the lens mounting groove 4.

[0059] The working process of the portable myopia prevention glasses: Unfold the first temple 201 through the first hinge bracket 301 and the first hinge rotation shaft 302, and unfold the second temple 202 through the second hinge bracket 303 and the second hinge rotation shaft 304 to ensure that the temples 2 can firmly support the glasses. Place the spectacle frame 1 in front of the eyes so that the rubber pad on the nose bridge 6 fits the nose bridge to provide comfortable support. Adjust the position of the temples 2 so that the glasses are firmly worn on the head.

[0060] According to one's own vision condition, select the myopia prevention lens 501 or the myopia correction lens 502 from the lens mounting groove 4. If you want to prevent myopia, choose the myopia prevention lens 501. If you are nearsighted and need to correct your vision, choose the myopia correction lens 502. The myopia prevention lens 501 and the myopia correction lens 502 can be detachably placed in the lens mounting groove 4.

[0061] When using the myopia prevention lens 501, through the total reflection free-form mirror 10 and the planar beam splitter 11, according to the imaging distance calculation formula 1 / u + 1 / v = 1 / f, where u is the object distance, v is the image distance, and f is the focal length, the object distance of the nearby object is u and it is imaged as a virtual image at a long distance with the image distance of v, and the eye lens is adjusted to prevent myopia.

[0062] Under normal circumstances, when the eyes look at an object at a distance of d, the accommodative power is D1 = 1 / d. After using the anti-myopia lens 501, the eyes see a virtual image at a distance of D, and at this time the accommodative power is D2 = 1 / D. The accommodative power of the total reflection free-form mirror 10 and the planar beam splitter 11 is 1 / 5 = 0.18D. The anti-myopia lens 501 forms a virtual image of a near-distance object as a far-distance one, greatly reducing the accommodative power used by the eyes and alleviating eye fatigue.

[0063] After wearing the glasses, carry out daily learning, work or other activities that require the use of eyes. The glasses will convert near-distance objects into far-distance virtual images, thereby adjusting the eye lens to achieve the effect of preventing myopia or correcting vision. After use, fold the temple 2 through the hinge rotating shaft for easy carrying and storage.

[0064] Example 2: A method for using a portable anti-myopia glasses, comprising the following steps:

[0065] Step 1: Unfold the first temple 201 and the second temple 202 connected to both sides of the frame 1 through the hinge assembly 3 to ensure that the temple 2 can stably support the glasses;

[0066] Step 2: Place the frame 1 of the glasses in front of the eyes, so that the rubber pads on the nose bridge 6 fit the nose to provide comfortable support; adjust the position of the temple 2 to wear the glasses stably on the head;

[0067] Step 3: According to one's own vision condition, choose to use the anti-myopia lens 501 or the myopia correction lens 502; choose the anti-myopia lens 501 for preventing myopia; choose the myopia correction lens 502 for correcting myopia;

[0068] Step 4: Adjust the imaging distance: According to the optical imaging principle, the relationship between the object distance u, the image distance v and the focal length f satisfies 1 / u + 1 / v = 1 / f; when using the anti-myopia lens 501, through the total reflection free-form mirror 10 and the planar beam splitter 11, a near-distance object with an object distance of u forms a far-distance virtual image with an image distance of v, converting the near-distance object into a far-distance object to adjust the eye lens for preventing myopia;

[0069] Step 5: Normal use: After wearing the glasses, carry out daily learning, work or other activities that require the use of eyes; the glasses will convert near-distance objects into far-distance virtual images, thereby adjusting the eye lens to achieve the effect of preventing myopia;

[0070] Step 6: Store the glasses: After use, fold the temple 2 through the hinge rotating shaft for easy carrying and storage.

[0071] The working principle of the portable anti-myopia glasses is as follows: The first temple 201 and the second temple 202 connected to both sides of the frame 1 are unfolded through the hinge assembly 3 to ensure that the temples 2 can firmly support the glasses and prepare for subsequent wearing. Then, place the frame 1 in front of the eyes, make the rubber pads on the nose bridge 6 fit the nose, and adjust the position of the temples 2 to firmly wear the glasses on the head.

[0072] Next, select the lens 5 according to your own vision condition. If you want to prevent myopia, choose the anti-myopia lens 501; if you are nearsighted and need to correct your vision, choose the corrective myopia lens 502.

[0073] When using the anti-myopia lens 501, using the principle of optical imaging, through the total reflection free-form mirror 10 and the planar beam splitter 11, the object distance of the nearby object is u and the image is formed as a virtual image at a long distance with an image distance of v. According to the formula 1 / u + 1 / v = 1 / f, the nearby object is converted into a distant object, thereby adjusting the eye lens to achieve the effect of preventing myopia.

[0074] When using the glasses normally, during daily study, work or other eye-using activities, the glasses will continuously convert nearby objects into virtual images at a long distance, constantly adjusting the eye lens to achieve the effect of preventing myopia.

[0075] Finally, after use, fold the temples 2 through the hinge rotation shaft for convenient carrying and storage.

[0076] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement to the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A portable anti-myopia glasses, comprising a frame (1), characterized in that: The two sides of the frame (1) are connected to the temples (2) via hinged components (3); the frame (1) is provided with a lens mounting groove (4); a lens (5) is arranged in the lens mounting groove (4); the lens (5) comprises a myopia prevention lens (501) and a myopia correction lens (502); the myopia prevention lens (5) and the myopia correction lens (502) are provided with a total reflection free-form surface mirror (10) and a plane beam splitter (11); the calculation formula for the imaging distance of the total reflection free-form surface mirror (10) and the plane beam splitter (11) is: Among them: U is the object distance, V is the image distance, and f is the focal length; By using a total reflection free-form surface mirror (10) and a plane beam splitter (11), a close-up object with an object distance u is imaged as a long-distance virtual image with an image distance v, and the close-up object is converted into a long-distance object to adjust the eye lens and prevent myopia.

2. The portable anti-myopia glasses according to claim 1, characterized in that: The hinge assembly (3) comprises a first hinge frame (301), a first hinge rotation axis (302), a second hinge frame (303), and a second hinge rotation axis (304); and the temple (2) comprises a first temple (201) and a second temple (202).

3. The portable anti-myopia glasses according to claim 2, characterized in that: The first temple (201) is connected to the first hinged frame (301) and is movably fixed via the first hinged rotation axis (302); the second temple (202) is connected to the second hinged frame (303) and is movably fixed via the second hinged rotation axis (304).

4. The portable anti-myopia glasses according to claim 3, characterized in that: A nose bridge (6) is arranged in the middle of the frame (1), and a rubber pad is arranged on the outer surface of the nose bridge (6).

5. The portable anti-myopia glasses according to claim 4, characterized in that: The upper part of the frame (1) is provided with a lens mounting upper through hole (7), the inner side edge of the frame (1) is provided with a frame side bar hole (8), and the lower part of the frame (1) is provided with a lower hole groove (9).

6. The portable anti-myopia glasses according to claim 5, characterized in that: The side strip holes (8) and the lower hole grooves (9) of the mirror frame are provided with 3 / 4 empty grooves on the inner side of the mirror frame (1), and the side strip holes (8) and the lower hole grooves (9) of the mirror frame are closed structures on the outer side of the mirror frame (1).

7. The portable anti-myopia glasses according to claim 6, characterized in that: The total reflection free-form surface mirror (10) and the plane beam splitter (11) use an optical curved surface mirror, and the formula for calculating the adjustment force is: adjustment force D = 1 / distance (m) Under normal circumstances, when the eyes look at an object at a distance of d, the accommodation power is D1 = 1 / d; After using the myopia prevention lens (501), the eyes see a virtual image at a distance of D, and the accommodation power is D2 = 1 / D.

8. The portable anti-myopia glasses according to claim 7, characterized in that: The adjustment power of the total reflection free-form surface mirror (10) and the plane beam splitter (11) = 1 / 5 = 0.18D; When the eyes look at a close object, the object is imaged clearly on the retina through accommodation force; the myopia prevention lens (501) images the close object as a virtual image at a long distance.

9. The portable anti-myopia glasses according to claim 8, characterized in that: The myopia prevention lens (501) and the myopia correction lens (502) can be detached and placed in the lens installation groove (4).

10. A method for using portable anti-myopia glasses, characterized in that: The following steps are involved: Step 1: unfold the first temple (201) and the second temple (202) connected to both sides of the frame (1) through the hinge assembly (3), and ensure that the temple (2) can stably support the glasses; Step 2: Place the frame (1) of the glasses in front of the eyes, so that the rubber pad on the nose bridge (6) fits the bridge of the nose to provide comfortable support; adjust the position of the temples (2) so that the glasses are firmly worn on the head; Step 3: Choose to use myopia prevention lenses (501) or myopia correction lenses (502) according to your own vision conditions; if you want to prevent myopia, choose myopia prevention lenses (501); if you want to correct your myopia, choose myopia correction lenses (502); Step 4: Adjusting the imaging distance: According to the optical imaging principle, the relationship between the object distance u, the image distance v and the focal length f satisfies 1 / u+1 / v=1 / f; when using the myopia prevention lens (501), a close object with an object distance u is imaged as a long-distance virtual image with an image distance v through a total reflection free-form surface mirror (10) and a plane beam splitter (11), and the close object is converted into a long-distance object to adjust the eye lens to prevent myopia; Step 5: Normal use: After wearing the glasses, carry out daily study, work or other activities that require the use of eyes; the glasses will convert close objects into long-distance virtual images, thereby adjusting the eye lens; Step 6: Storing the glasses: After use, fold the temples (2) together via the hinged rotating shaft.

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