Vision Control Lenses and Glasses
By setting multiple defocused microlenses in the light area around the lens of myopia glasses and controlling their diameter and spacing, the problem of insufficient red light diffusion in the prior art is solved, and the effect of effectively suppressing the growth of the eye axis and preventing myopia is achieved.
Patent Information
- Application Number
- CN202211209464.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2042-09-30
AI Technical Summary
Existing myopia glasses have defocused microlenses around the lens, but they cannot effectively disperse red light, resulting in insufficient suppression of the growth of the eye axis by red light and unable to fully protect the human eyes.
A vision control lens is designed, and its lens body includes a central fixed light area and a peripheral light area. A plurality of defocused microlens are provided in the peripheral light area. By controlling the diameter and spacing of the defocused microlens, the dispersion effect of the peripheral light area on red light is enhanced.
By effectively dispersing red light, the retina can secrete more dopamine, inhibit the growth of the eye axis, prevent and control the occurrence and degree growth of myopia, and at the same time, the diffuse light is soft, which is less irritating to the human eye and has high reliability.
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Figure CN115542578B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of myopia glasses, and in particular to a vision control lens and glasses. Background Art
[0002] Myopia glasses work by diverging light so that the image is focused on the retina, thus overcoming the myopia problem of the image focusing in front of the retina. For myopic people whose eyes are in the developmental period, since the optical focus of the peripheral part of the myopia lens falls behind the retina, the eye axis will be forced to grow to receive this part of the visual information, which is not conducive to the normal development of the eye and affects normal vision. Red light irradiation can induce the retina to produce and release dopamine, and dopamine can be used to inhibit the growth of the eye axis, thereby achieving the purpose of controlling the growth of myopia.
[0003] At present, some myopia glasses are equipped with defocused microlenses in the peripheral part of the lens so that the optical focus of the peripheral part of the lens falls on the retina, thereby avoiding abnormal development of the eyeball. However, the defocused microlenses included in the lens cannot effectively diffuse red light, and the undispersed red light has insufficient influence on the eyeball, resulting in insufficient inhibition of eye axis growth by red light irradiation, and failure to provide adequate protection for human eyes. Summary of the invention
[0004] The present invention provides a vision control lens and glasses to solve at least part of the technical problems that the defocused microlenses included in the existing myopia lenses cannot effectively diffuse red light and provide insufficient protection for human eyes.
[0005] According to one aspect of the present invention, there is provided a vision control lens, comprising: a lens body, wherein the lens body comprises:
[0006] A central fixed light zone, located at the center of the lens body; and
[0007] A peripheral light zone is located around the central fixed light zone, and the peripheral light zone is provided with a plurality of defocus micro lenses, and two adjacent defocus micro lenses are arranged at intervals;
[0008] The diameter of the defocused microlens is less than 1 mm, and the ratio of the distance between two adjacent defocused microlenses to the diameter of the defocused microlens is (0-0.5):(0-1).
[0009] According to the vision control lens provided by the present invention, a central fixed light zone is set at the central position of the lens body, so that the optical focus of the lens center can fall on the retina, and a plurality of defocus microlenses are set in the peripheral light zone of the lens body. The defocus microlenses can be used to make the optical focus of the peripheral light zone fall on the retina or in front of the retina, thereby avoiding the stretching growth of the eyeball, and by controlling the diameter of the defocus microlenses and the spacing of the defocus microlenses, the spacing between each defocus microlens in the peripheral light zone, that is, the slit width is small enough, which can enhance the diffusion effect of the peripheral light zone for red light with a wavelength greater than 650nm to improve the blood circulation of the fundus, so that the diffused red light can be used to promote the retina to secrete more dopamine, so as to effectively inhibit the growth of the eye axis, prevent and control the occurrence of myopia and the increase of degree, and the diffused light is soft, less irritating to the human eye, and has high reliability.
[0010] In a further preferred embodiment, the peripheral light zone includes a first light zone and a second light zone which are sequentially arranged from the inside to the outside of the lens body, and the defocused microlenses cover the first light zone.
[0011] By distributing defocus microlenses over the first light zone, the defocus microlenses on the first light zone can be used to achieve a defocusing effect on the peripheral light of the central fixed light zone, so that the optical focus of the peripheral light zone falls on the retina or in front of the retina to ensure clear vision and effectively slow down the progression of myopia.
[0012] In a further preferred embodiment, the central fixed light zone is circular, the first light zone and the second light zone are annular, the diameter of the central fixed light zone is R0, the outer diameter of the first light zone is R1, and the outer diameter of the second light zone is R2;
[0013] Among them, R0 / R1 is 10.67% to 13.33%, and R1 / R2 is 40.00% to 73.33%.
[0014] In this solution, the size ratios of the central fixed light zone, the first light zone and the second light zone relative to the lens body are controlled respectively, so that the optical focus of the center of the lens can be focused on the retina by using the central fixed light zone, and the optical focus of the periphery of the lens can be focused on the retina or in front of the retina by using the first light zone, which can effectively prevent the growth of the eye axis.
[0015] In a further preferred embodiment, R0 is 8-10 mm, R1 is 30-55 mm, and R2 is 75 mm. That is, the diameter of the central fixed light zone is 8-10 mm, the outer diameter of the first light zone is 30-55 mm, and the outer diameter of the second light zone is 75 mm. Within this size range, the optical focus of the peripheral light zone can be focused on the retina or in front of the retina, thereby inhibiting the growth of the eye axis.
[0016] In a further preferred embodiment, the number of the defocused microlenses is 2100 to 2600.
[0017] By arranging 2100 to 2600 defocusing micro-lenses in the first light zone, a sufficient defocusing effect can be achieved by only using the defocusing micro-lenses in the first light zone.
[0018] In a further preferred embodiment, the vertex power of the defocused microlens is +2.5 to +4.5D.
[0019] In this solution, the top focal length of the defocused microlens is limited so that the light refraction ability of the defocused microlens can meet the requirement of correcting the optical focus of the peripheral light zone to the retina, thereby avoiding the problem of axial lengthening caused by the optical focus of the peripheral light zone falling behind the retina.
[0020] In a further preferred embodiment, a distance between two adjacent defocused microlenses in the circumferential direction is the same as a distance between two adjacent defocused microlenses in the radial direction.
[0021] Arranging the defocused microlenses equidistantly can make all the defocused microlenses evenly distributed in the peripheral light zone, and the gap width between adjacent defocused microlenses is small enough, thereby enhancing the diffusion effect of the peripheral light zone for red light, and realizing the effect of using red light diffusion to inhibit the growth of the eye axis.
[0022] In a further preferred embodiment, the diameter of the defocused microlens is 0.4-0.8 mm.
[0023] By reducing the diameter of the defocused microlens, as many defocused microlenses as possible can be arranged when the surface area of the lens is limited. At the same time, since the size of the defocused microlens is reduced, it is beneficial to reduce the gap width between each defocused microlens, which can further enhance the diffusion effect of the peripheral light area for red light.
[0024] In a further preferred embodiment, the distance between two adjacent defocused microlenses is 0-0.5 mm. In this case, a better red light diffusion effect can be achieved, thereby effectively inhibiting the growth of the eye axis and ensuring the normal growth of the eyeball.
[0025] According to another aspect of the present invention, a pair of glasses is provided, comprising any one of the above-mentioned vision control lenses.
[0026] The glasses made using the above-mentioned vision control lenses not only have the effect of myopia glasses, but can also achieve a defocusing effect by using multiple defocusing microlenses on the lens body, so that the optical focus of the peripheral light zone of the lens body falls on the retina or in front of the retina, thereby avoiding the stretching and growth of the eyeball; at the same time, the arrangement of the defocusing microlenses can enhance the diffusion effect of the peripheral light zone on red light, so as to effectively inhibit the growth of the eye axis, prevent the occurrence of myopia and the increase in degree.
[0027] In summary, the present invention provides a vision control lens and glasses, wherein the vision control lens comprises a central fixed light zone arranged on a lens body and a peripheral light zone surrounding the periphery of the central fixed light zone, wherein the peripheral light zone is provided with a plurality of defocus microlenses, and the plurality of defocus microlenses are arranged according to a certain rule so that the slit width of each defocus microlens is as small as possible, thereby achieving a red light diffusion effect, and further, red light diffusion can be used to promote the secretion of dopamine, and dopamine can be used to inhibit the growth of the eye axis to avoid affecting the normal development of the eyeball. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0029] Figure 1 A schematic diagram of the structure of a vision control lens provided by an embodiment of the present invention;
[0030] Figure 2 A schematic diagram of the coating layer structure of the vision control lens provided by an embodiment of the present invention;
[0031] Figure 3 The diffraction imaging diagram provided by Example 1 of the present invention;
[0032] Figure 4 The diffraction imaging diagram provided by Example 2 of the present invention;
[0033] Figure 5 The diffraction imaging diagram provided by Example 3 of the present invention;
[0034] Figure 6 The diffraction imaging diagram provided for Comparative Example 1 of the present invention;
[0035] Figure 7 The diffraction imaging diagram provided for Comparative Example 2 of the present invention;
[0036] Figure 8 This is the diffraction imaging diagram provided for Comparative Example 3 of the present invention.
[0037] The reference numerals are as follows:
[0038] The lens body 100,
[0039] Center fixed light zone 110,
[0040] A peripheral light zone 120, a first light zone 121, a second light zone 122,
[0041] Defocused microlens 130,
[0042] Anti-reflection film 141, diamond film 142, super waterproof film 143. DETAILED DESCRIPTION
[0043] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0048] Please refer to Figure 1 , the vision control lens provided according to the embodiment of the present invention at least includes: a lens body 100, the lens body 100 includes: a central fixed light zone 110, located at the center of the lens body 100; and a peripheral light zone 120, located at the periphery of the central fixed light zone 110, the peripheral light zone 120 is provided with a plurality of defocused microlenses 130, and two adjacent defocused microlenses 130 are arranged at intervals; wherein, the diameter of the defocused microlens 130 is less than 1 mm, and the ratio of the spacing between two adjacent defocused microlenses 130 to the diameter of the defocused microlens 130 is (0~0.5):(0~1).
[0049] The lens body 100 is an effective part of the vision control lens for correcting myopia, and can prevent the eye axis from growing, reduce myopia, etc.
[0050] Specifically, the central fixed light zone 110 included in the lens body 100 and located at the center of the lens body 100 is used to focus the optical focus of the central position of the lens body 100 on the retina, thereby overcoming the problem of myopia. The peripheral light zone 120 included in the lens body 100 and located on the periphery of the central fixed light zone 110 is provided with a plurality of defocus microlenses 130, and the defocus microlenses 130 may be convex lenses. The optical focus of the peripheral light zone 120 is corrected by the defocus microlenses 130, so that the optical focus of the peripheral light zone 120 falls on the retina or in front of the retina. Compared with the optical focus of the peripheral light zone 120 of the traditional lens falling behind the retina, by using the vision control lens in this embodiment, the eye axis does not need to grow to adapt to the position of the optical focus of the peripheral light zone 120, and the problem of abnormal eye axis growth can be avoided.
[0051] Furthermore, in this embodiment, the diameter of the defocused microlens 130 is controlled to be less than 1 mm and the ratio of the spacing between the defocused microlenses 130 and the diameter of the defocused microlens 130 is limited, which is beneficial to further suppress the growth of the eye axis based on the diffraction effect.
[0052] Specifically, based on the Fraunhofer diffraction principle, the size of the angular half width can be used as a sign of the strength of the diffraction effect. For a given wavelength, the angular half width is inversely proportional to the slit width (that is, the spacing between two adjacent defocused microlenses 130 in this embodiment), that is, the smaller the slit width, the greater the restriction on the light beam, and the more diffuse the diffraction field; on the contrary, when the slit width is larger and the light beam is almost freely propagated, the angular half width approaches zero. In addition, the angular half width is proportional to the wavelength. The longer the wavelength, the more significant the diffraction effect, and the shorter the wavelength, the more negligible the diffraction effect. For example, through Zemax OpticStudio optical software simulation, when the given wavelength is 650nm and the slit width is less than 0.32mm, an obvious diffuse spot appears in the diffraction field. Under the spacing range of adjacent defocused microlenses 130 defined in this embodiment, the defocused microlens 130 can effectively diffuse the red light band. For example, the red light band of the incoming light with a wavelength greater than 650nm can be targeted and diffused, while the red light less than or equal to 650nm is not diffused and still follows the normal light path, retaining the spectral band that is beneficial to the human eye. By wearing the vision control lens of this embodiment, the vision control lens can target diffuse red light greater than 650nm to improve the blood circulation of the fundus, promote the secretion of dopamine by retinal pigment epithelial cells, increase the thickness of the choroid at the posterior pole of the eye, and increase the oxygen content of the sclera, thereby strengthening the sclera to achieve the effect of inhibiting the abnormal growth of the eye axis, and realizing the prevention and control of the occurrence and degree of myopia.
[0053] As a further preferred embodiment, based on the above-mentioned solution, the specific embodiment of the present invention may also include one or more of the following additions or combinations.
[0054] In some optional embodiments, the peripheral light zone 120 includes a first light zone 121 and a second light zone 122 which are sequentially arranged from the inside to the outside of the lens body 100, and the defocused microlenses 130 are distributed throughout the first light zone 121. That is, the lens body 100 includes a central fixed light zone 110, a first light zone 121, and a second light zone 122 sequentially from the inside to the outside, wherein the first light zone 121 is fully covered with defocused microlenses 130, and the second light zone 122 is a blank area where no defocused microlenses 130 are arranged. In this embodiment, the defocused microlenses 130 are arranged only in the first light zone 121 close to the center of the eyeball, and the defocused microlenses 130 are not arranged in the second light zone 122 far from the center of the eyeball. Through the above design, the defocusing effect of the peripheral light of the central fixed light zone 110 can be achieved, so that the optical focus of the peripheral light zone falls on the retina or in front of the retina, which can avoid the growth of the eyeball, effectively slow down the further deepening of myopia, and ensure that the eyes can see things clearly.
[0055] In some optional embodiments, the central fixed light zone 110 is circular, the first light zone 121 and the second light zone 122 are ring-shaped, the diameter of the central fixed light zone 110 is R0, the outer circle diameter of the first light zone 121 is R1, and the outer circle diameter of the second light zone 122 is R2; wherein R0 / R1 is 10.67% to 13.33%, and R1 / R2 is 40.00% to 73.33%.
[0056] Further references Figure 1 The peripheries of the central fixed light zone 110, the first light zone 121, and the second light zone 122 are all circular, which is conducive to matching with the human eyeball and has a better myopia correction effect. In addition, this embodiment provides a size ratio range of the central fixed light zone 110, the first light zone 121, and the second light zone 122. Within this range, it can be ensured that the optical focus of the peripheral light zone 120 is focused on the retina or in front of the retina, which plays a role in inhibiting the growth of the eye axis.
[0057] For example, in one specific embodiment, the diameter of the lens body 100, that is, the outer diameter of the second light zone 122, is 75 mm, the outer diameter of the first light zone 121 is 30-55 mm, the diameter of the central fixed light zone 110 is 8-10 mm, and the distance between each two defocused microlenses 130 is 0-0.5 mm. At this time, the growth of the eye axis can be effectively inhibited to ensure the normal growth of the eyeball.
[0058] In some optional embodiments, the number of the defocused microlenses 130 is 2100 to 2600. All the defocused microlenses 130 are arranged on the first light zone 121, and a large number of defocused microlenses 130 can be used to fully defocus, thereby avoiding the problem of unclear defocused objects due to insufficient number of defocused microlenses 130, thereby forming a longer wavelength red light dispersion while ensuring that the shorter wavelength light can be clearly imaged.
[0059] In some optional embodiments, the vertex power of the defocused microlens 130 is +2.5 to +4.5 D. The refraction ability of the defocused microlens 130 within this vertex power range can meet the requirement of correcting the optical focus of the peripheral light zone 120 to the retina, thereby avoiding the problem of the optical focus of the peripheral light zone 120 falling behind the retina and causing the eye axis to grow.
[0060] Optionally, the top focal length of the defocused microlens 130 may be controlled to be +2.5 to +3D, in which case the defocusing effect of the defocused microlens 130 may be further enhanced.
[0061] In some optional embodiments, the spacing between two adjacent defocus microlenses 130 in the circumferential direction is the same as the spacing between two adjacent defocus microlenses 130 in the radial direction.
[0062] Further references Figure 1 , all the defocused microlenses 130 surround the periphery of the central fixed light zone 110 and are arranged equidistantly in pairs. Specifically, in the circumferential direction of the circular central fixed light zone 110, the spacing between adjacent defocused microlenses 130 is the same, and at the same time, in the radial direction of the circular central fixed light zone 110, the spacing between adjacent defocused microlenses 130 is also the same. By evenly arranging the defocused microlenses 130 in the peripheral light zone 120, the spacing between the defocused microlenses 130 can be made small enough, that is, the gap width between the defocused microlenses 130 is small enough, which is conducive to enhancing the diffusion effect of the peripheral light zone 120 for red light.
[0063] In some optional embodiments, the diameter of the defocused microlens 130 is 0.4-0.8 mm. Since the surface area of the lens body 100 is limited, in order to minimize the spacing between adjacent defocused microlenses 130, the diameter of the defocused microlens 130 in this embodiment is controlled to be 0.4-0.8 mm, which can minimize the gap width between adjacent defocused microlenses 130 while ensuring the defocusing effect of the defocused microlens 130, and further enhance the diffusion effect of the peripheral light zone 120 on red light.
[0064] In some optional embodiments, a coating layer is provided on one side of the lens body 100 to protect the lens body 100 .
[0065] Reference Figure 2 A coating layer with various functions can be set on the side of the lens body 100, and the coating layer can be plated on the side of the lens body 100 through a corresponding coating process, which can protect the lens body 100 and enable the lens body 100 to have various functions.
[0066] For example, the coating layer can be at least one of an anti-reflection film 141, a diamond film 142, and an ultra-waterproof film 143. The anti-reflection film 141 can be added with zirconium to increase the film hardness. The anti-reflection film 141 can reduce the reflected light on the lens surface, making the vision clear. The diamond film 142 can effectively enhance the overall hardness of the lens body 100 and increase the light transmittance. The ultra-waterproof film 143 can prevent the mirror surface from being contaminated with oil.
[0067] In order to make the purpose, technical solutions and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. However, the described specific embodiments are only used to explain the present invention and are not used to limit the present invention.
[0068] Each embodiment and comparative example in the present invention performs imaging on the same image plane, wherein the same image plane means that the incident light in all embodiments and comparative examples is exactly the same, the distance from the light source to the gap between two adjacent defocused microlenses is the same, the distance from the gap between two adjacent defocused microlenses to the imaging plane is the same, and the area of the imaging plane is the same.
[0069] Example 1
[0070] Select a defocused microlens with a diameter of 0.61mm, and keep the distance between two adjacent defocused microlenses at 0.31mm, that is, the width of the gap between two adjacent defocused microlenses is 0.31mm. Through Zemax OpticStudio optical software simulation, under the irradiation of incident light with a given wavelength of 650nm, the incident light passes through the gap between the two defocused microlenses and forms an image on the imaging surface. The diffraction image formed on the imaging surface is as follows: Figure 3 shown.
[0071] Example 2
[0072] Select a defocused microlens with a diameter of 0.41mm, and keep the distance between two adjacent defocused microlenses at 0.01mm, that is, the width of the gap between two adjacent defocused microlenses is 0.01mm. Through Zemax OpticStudio optical software simulation, under the irradiation of incident light with a given wavelength of 650nm, the incident light passes through the gap between the two defocused microlenses and forms an image on the imaging surface. The diffraction image formed on the imaging surface is as follows: Figure 4 shown.
[0073] Example 3
[0074] Select a defocused microlens with a diameter of 0.79 mm, and keep the distance between two adjacent defocused microlenses at 0.49 mm, that is, the width of the gap between two adjacent defocused microlenses is 0.49 mm. Through Zemax OpticStudio optical software simulation, under the irradiation of incident light with a given wavelength of 650 nm, the incident light passes through the gap between the two defocused microlenses and forms an image on the imaging surface. The diffraction image formed on the imaging surface is as follows: Figure 5 shown.
[0075] Comparative Example 1
[0076] Select a defocused microlens with a diameter of 0.39 mm, and keep the distance between two adjacent defocused microlenses at 0.31 mm, that is, the width of the gap between two adjacent defocused microlenses is 0.31 mm. Through Zemax OpticStudio optical software simulation, under the irradiation of incident light with a given wavelength of 650 nm, the incident light passes through the gap between the two defocused microlenses and forms an image on the imaging surface. The diffraction image formed on the imaging surface is as follows: Figure 6 shown.
[0077] Comparative Example 2
[0078] Select a defocused microlens with a diameter of 0.81mm, and keep the distance between two adjacent defocused microlenses at 0.31mm, that is, the gap width between two adjacent defocused microlenses is 0.31mm. Through Zemax OpticStudio optical software simulation, under the irradiation of incident light with a given wavelength of 650nm, the incident light passes through the gap between the two defocused microlenses and forms an image on the imaging surface. The diffraction image formed on the imaging surface is as follows: Figure 7 shown.
[0079] Comparative Example 3
[0080] Select a defocused microlens with a diameter of 0.61mm, and keep the distance between two adjacent defocused microlenses at 0.51mm, that is, the width of the gap between two adjacent defocused microlenses is 0.51mm. Through Zemax OpticStudio optical software simulation, under the irradiation of incident light with a given wavelength of 650nm, the incident light passes through the gap between the two defocused microlenses and forms an image on the imaging surface. The diffraction image formed on the imaging surface is as follows: Figure 8 shown.
[0081] The following is an analysis based on the above embodiments and comparative examples.
[0082] like Figures 3 to 5As shown, the diffraction phenomenon in Examples 1 to 3 of the present invention is obvious, and obvious diffuse spots are formed on the imaging surface, that is, the red light with a wavelength of 650nm can be diffused, thereby promoting the retina to secrete more dopamine, so as to effectively inhibit the growth of the eye axis and prevent the occurrence and degree of myopia. Figures 6 to 8 As shown, no obvious diffraction phenomenon occurs in Comparative Examples 1 to 3 of the present invention, and no obvious diffuse spots are formed on the imaging surface, that is, the red light diffusion effect cannot be achieved.
[0083] Table 1 Diameter values and slit width values of defocused microlenses and diffraction phenomena of Examples 1 to 3 and Comparative Examples 1 to 3
[0084]
[0085] According to another embodiment of the present invention, a pair of glasses is provided, comprising any one of the above-mentioned vision control lenses.
[0086] The glasses made of the above-mentioned vision control lenses have a simple structure and a reasonable design, and can make the optical focus of the peripheral light zone 120 fall on the retina, effectively slowing down the occurrence of myopia or the deepening of myopia. Specifically, the glasses not only have the function of correcting myopia, but also can use the multiple defocusing microlenses 130 on the lens body 100 to achieve a defocusing effect, so that the optical focus of the peripheral light zone 120 falls on the retina or in front of the retina, thereby avoiding the stretching growth of the eyeball; at the same time, the arrangement of the defocusing microlenses 130 can enhance the diffusion effect of the peripheral light zone 120 for red light, so as to effectively inhibit the growth of the eye axis, prevent the occurrence of myopia and the increase of myopia.
[0087] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.
Claims
1. A vision control lens, comprising a lens body, characterized in that: The lens body comprises: A central fixed light zone, located at the center of the lens body; and A peripheral light zone is located around the central fixed light zone, and the peripheral light zone is provided with a plurality of defocus micro lenses, and two adjacent defocus micro lenses are arranged at intervals; The diameter of the defocused microlens is 0.4 to 0.79 mm, the spacing between two adjacent defocused microlenses is 0.01 to 0.49 mm, and the ratio of the spacing between two adjacent defocused microlenses to the diameter of the defocused microlens is (0.01 to 0.49):(0.4 to 0.79); The peripheral light zone includes a first light zone and a second light zone which are arranged in sequence from the inside to the outside of the lens body, the defocused microlenses cover the first light zone, and the second light zone is not provided with the defocused microlenses; The central fixed light area is circular, the first light area and the second light area are annular, the diameter of the central fixed light area is R0, the outer diameter of the first light area is R1, and the outer diameter of the second light area is R2; Among them, R0 / R1 is 10.67% to 13.33%, and R1 / R2 is 40.00% to 73.33%.
2. The vision control lens according to claim 1, characterized in that: R0 is 8-10 mm, R1 is 30-55 mm, and R2 is 75 mm.
3. The vision control lens according to claim 1, characterized in that: The number of the defocused microlenses is 2100 to 2600.
4. The vision control lens according to any one of claims 1 to 3, characterized in that: The vertex power of the defocused microlens is +2.5 to +4.5D.
5. The vision control lens according to claim 1, characterized in that: The distance between two adjacent defocus microlenses in the circumferential direction is the same as the distance between two adjacent defocus microlenses in the radial direction.
6. A pair of glasses, characterized in that: A vision control lens comprising the vision control lens according to any one of claims 1 to 5.
Citation Information
Patent Citations
Micro-lens peripheral out-of-focus spectacle lens
CN110687689A