Posture correction glasses
By designing a composite curved lens, combining a ring curved lens and a spherical lens, and setting a sequential prism combination on the lens, the problem that existing correction lenses cannot correct posture and slight astigmatism aberration is solved, and the corrective wearer is achieved Position and effects to improve imaging clarity.
Patent Information
- Application Number
- CN202010868145.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-08-26
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-08-26
AI Technical Summary
Existing correction lenses cannot effectively correct the wearer's posture, and cannot accurately correct the slight astigmatism and slight aberrations on the anterior surface of the human cornea, resulting in the wearer's susceptibility to eye fatigue and cervical pressure.
A composite curved lens lens is designed. The lens is combined with a ring curved lens and a spherical lens. The center point of the spherical lens is higher than the center point of the ring curved lens and gradually thickens at the edge of the lens. The front of the lens is provided with several triangular edges. The surfaces are arranged in sequence to form smooth and coherent ups and downs, which are used to match the concave and convex shapes of the front surface of the corneal, correct slight astigmatism and aberrations, and an ultraviolet-proof film is provided on the lens.
By forming a virtual image that is biased upward, the wearer's learning posture is corrected, the cervical spine pressure is reduced, and the slight astigmatism and aberration are accurately corrected through prism combinations, the imaging clarity is improved and eye fatigue is reduced.
Smart Images
Figure CN111856780B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of functional lenses, and in particular to posture correction glasses. Background Art
[0002] Nowadays, with the increasing number of electronic products, they are becoming more and more integrated into our lives and work. We need to spend a lot of time using our eyes at close range every day. Electronic products are getting closer and closer to our eyes inadvertently. The closer the distance, the easier it is for the eyes to get tired. Long-term close-range work is an important cause of the occurrence and development of myopia.
[0003] Conventional spectacle lenses are symmetrical and can only make vision clear by changing the focal length of the object, but cannot change the diopter of the lens or relax the ciliary muscle. To this end, Chinese utility model patent CN2280298Y provides a lens for preventing and correcting myopia. The lens is made of prism grinding, thick on the top and thin on the bottom, the angle between the two mirror surfaces is 15° to 20°, and the side projection of the lens is approximately triangular. The lens has deflection and divergence effects. Glasses using this lens can avoid fatigue caused by long-term local observation of the ciliary muscle, fully relax the ciliary muscle, and achieve the effect of preventing and correcting myopia. At the same time, it is suitable for art workers to change local observation to overall observation when sketching outdoors.
[0004] However, the above-mentioned lenses for preventing and correcting myopia have the following disadvantages:
[0005] (1) Through this lens, the image of the object is a virtual image that is biased downward, upright, and reduced. The human eye can see the object clearly through peripheral vision, which has the effect of training the ciliary muscle. However, since the image of the object is downward, the wearer may lower his head to see the object clearly, which will aggravate the incorrect posture and cause pressure on the wearer's cervical spine.
[0006] (2) The front surface of the human cornea is uneven. When light enters the human eye, it forms a wavefront that produces tiny astigmatism and tiny aberrations, affecting the imaging effect. The precision of this lens is low and is not enough to accurately correct these tiny astigmatism and tiny aberrations, which can easily cause eye fatigue.
[0007] In view of this, there is an urgent need for a corrective lens to correct the wearer's posture, slight astigmatism and slight aberration. Summary of the invention
[0008] The technical problem to be solved by the present invention is that the existing corrective lenses cannot correct the wearer's posture and correct slight astigmatism and slight aberration.
[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:
[0010] A posture correction eyeglasses comprises a frame and a lens arranged on the frame, wherein the lens is a complex lens formed by a toric lens and a spherical lens, the center point of the spherical lens is higher than the center point of the toric lens, the complex lens gradually thickens from the upper end to the lower end, and the front of the complex lens is provided with a facet combination composed of a plurality of facets arranged in sequence to form a smooth and continuous undulation for correcting aberrations caused by the uneven front surface of the wearer's cornea, the facet combination and the complex lens are pressed and formed by a mold to match the concave and convex shape on the front surface of the cornea.
[0011] In this embodiment, the facet combination is composed of a plurality of triangular facets, and the triangular facets are arranged in order from large to small along both sides of the 180° line and from small to large along both sides of the 90° line. The facet combination forms a bulge along the direction of the 180° line.
[0012] In this solution, an anti-ultraviolet film is provided on the front side of the lens.
[0013] In this solution, the positive spherical power of the lens ranges from +0.00D to +4.50D.
[0014] In this solution, the negative spherical power of the lens ranges from -0.00D to -14.00D.
[0015] In this solution, the astigmatism degree of the lens ranges from -0.00D to -6.00D.
[0016] Compared with the prior art, the posture correction glasses provided by the present invention have a lens edge that gradually thickens from top to bottom. When the lens is refracted, a virtual image that is biased upward can be formed. The wearer needs to naturally turn his eyes upward and raise his head to see the object, so it can correct the wearer's learning posture. The front of the lens is distributed with a combination of several facets arranged in sequence to form a smooth and coherent undulation, which corrects the light entering the cornea to form a plane light wave on the retina, accurately corrects slight astigmatism and slight aberration, and thus improves the clarity of the image. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the structure of the lens in the present invention;
[0018] Figure 2 for Figure 1 A partial magnified view of the middle lens;
[0019] Figure 3 It is a schematic diagram of imaging of the lens in the present invention. DETAILED DESCRIPTION
[0020] The present invention provides a posture correction glasses, the edge of which gradually thickens from top to bottom, and a virtual image biased upward can be formed through the refraction of the lens, which plays a role in correcting the wearer's learning posture. The front of the lens is provided with a combination of several facets arranged in sequence, forming a smooth and coherent undulation, so that the object image falls on the retina to form a plane light wave, accurately correcting tiny astigmatism and tiny aberrations, thereby improving the clarity of the image. The present invention is described in detail below in conjunction with the drawings and specific embodiments of the specification.
[0021] like Figure 1 , Figure 2 As shown, the posture correction glasses provided by the present invention include a frame and a lens, wherein the lens is a complex lens 1 formed by combining a toric lens and a spherical lens, wherein the center point of the spherical lens is higher than the center point of the toric lens, and the complex lens 1 gradually thickens from the upper end to the lower end. A facet combination 10 is provided on the front of the complex lens 1, which is composed of a plurality of facets arranged in sequence, forming a smooth and continuous undulation. The facet combination 10 is composed of a plurality of triangular facets, and the arrangement order of the triangular facets is:
[0022] Arrange the two sides of the 180° line in descending order, such as: the area of triangular face A11 is greater than A12, A12 is greater than A13; the area of triangular face B11 is greater than B12, B12 is greater than B13, and so on. The side formed by the intersection of triangular face A11 and B11 is the highest point, and the vertex of the triangular face is the lowest point.
[0023] Arrange in order from small to large along both sides of the 90° line, such as: the area of triangular facet C11 is smaller than A11, A11 is smaller than D11, C12 is smaller than B12, B12 is smaller than D12, and so on. The side formed by the intersection of triangular facets C11 and C12 is the highest point, and the vertex of the triangular facet is the lowest point.
[0024] The facet combination 10 forms a ridge along the direction of the 180° line, that is, the edges of the triangular facets are distributed along the direction of the 180° line to form a ridge.
[0025] The facet assembly 10 is formed by high-temperature pressing of a mold and a complex curved lens 1. The mold can collect data on the unevenness of the front surface of the cornea through a corneal wavefront aberration analyzer and be customized according to the collected data. An anti-ultraviolet film is provided on the front of the complex curved lens 1 to prevent ultraviolet damage to the wearer from the electronic screen. The top and bottom ends of the complex curved lens 1 are provided with convex ridges 2 for mounting with the frame. The range of hyperopia of the lens is +0.00D to +4.50D, the range of myopia is -0.00D to -14.00D, and the range of astigmatism is -0.00D to -6.00D.
[0026] The principle of the present invention is as follows:
[0027] like Figure 3 As shown, when the light emitted by the object S enters the lens, it will be deflected. Under the divergent effect of the complex curved lens 1, the object will form a virtual image S' that is biased upward. When the human eye looks directly at the object, since the image is biased upward, the wearer needs to let the eyeball turn upward naturally and raise the head to see the object clearly. When the wearer wears the corrective lens and bows his head to study, he must raise his head to see the content of the book clearly. This is conducive to the wearer to form a correct learning posture and reduce the wearer's cervical spine pressure when studying.
[0028] The front surface of the human cornea is uneven, so when light enters the human eye and falls on the retina, a wavefront is formed, which will cause slight astigmatism or slight aberration. The front of the complex curved lens 1 is provided with a facet combination 10 composed of a plurality of facets arranged in sequence, forming a smooth and continuous undulation, which can correct the light entering the cornea, so that the object image falls on the retina to form a plane light wave, eliminate slight astigmatism and slight aberration, and improve the clarity of the image.
[0029] Nowadays, people have more and more work and less time to spend with their children. In many cases, they ignore their children's learning posture, which causes their children to have incorrect posture when doing homework, with their eyes very close to the books. Some children even "bury their heads in study" and lower their heads very low when doing homework. This not only causes visual fatigue to the eyes, but also puts pressure on the cervical spine, which has a great impact on growing children. The present invention, by forming an upward virtual image, requires the wearer to naturally turn his eyeballs upward and raise his head posture to see the object clearly. It can help children develop a good posture for doing homework, correct the wearer's bad sitting posture, and reduce the wearer's cervical spine pressure, so that the child's shoulder, neck, and spine bones develop well and improve their physical fitness.
[0030] The front of the lens is equipped with a combination of several facets arranged in sequence, forming smooth and continuous undulations, which can accurately correct the light entering the lens, avoid the slight astigmatism and slight aberration caused by the wavefront formed by the uneven corneal surface affecting the clarity of the image on the retina, improve the imaging quality of the lens, and relieve eye fatigue.
[0031] The facet combination is formed by high temperature pressing of the mold. The mold can be customized based on the data collected from the unevenness of the front surface of the cornea, and has a good correction effect.
[0032] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.
Claims
1. A posture correction glasses, comprising a frame and a lens arranged on the frame, characterized in that: The lens is a complex lens formed by combining a toric lens and a spherical lens. The center point of the spherical lens is higher than the center point of the toric lens. The complex lens gradually thickens from the upper end to the lower end. A facet combination composed of a plurality of facets arranged in sequence is provided on the front of the complex lens to form a smooth and continuous undulation, which is used to correct the aberration caused by the uneven front surface of the cornea. The facet combination and the complex lens are pressed and formed by a mold to match the concave and convex shape on the front surface of the cornea. The facet combination is composed of a plurality of triangular facets, the triangular facets are arranged in a descending order along the two sides of the 180° line and in a descending order along the two sides of the 90° line, and the facet combination forms a bulge along the direction of the 180° line; An anti-ultraviolet film is arranged on the front side of the lens.
2. The posture correction glasses according to claim 1, characterized in that: The positive spherical power of the lens ranges from +0.00D to +4.50D.
3. The posture correction glasses according to claim 1, characterized in that: The negative spherical power of the lens ranges from -0.00D to -14.00D.
4. The posture correction glasses according to claim 1, characterized in that: The astigmatism degree of the lens ranges from -0.00D to -6.00D.