A hyperboloid defocus composite lens and a hyperboloid defocus composite glasses

Abstract

The present application relates to the technical field of myopia prevention and control lenses, and particularly relates to a double-curved surface defocus composite lens and a double-curved surface defocus composite glasses. The double-curved surface defocus composite lens comprises a central clear vision area, a discrete defocus area and an annular defocus area. The annular defocus area of the back curve generates a persistent optical defocus stimulation, the discrete defocus area of the front curve provides a high-intensity discrete stimulation, and the spatial superposition of the discrete defocus area of the front curve and the annular defocus area of the back curve forms a multi-dimensional stimulation, thereby breaking through the limitation of neural adaptability and maintaining a long-term prevention and control effect. The radial width of the annular defocus area of the back curve can accurately cover the peripheral sensitive visual field area of the retina, and in combination with the lenticule distribution of the discrete defocus area of the front curve, a persistent defocus intervention on the key area is formed. By synchronously correcting central vision and regulating the peripheral defocus state, the double effect inhibits the rapid growth of the eye axis and improves the efficiency of myopia prevention and control.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of myopia prevention and control lenses, and particularly relates to a double-curved surface defocus composite lens and double-curved surface defocus composite glasses. BACKGROUND

[0002] In recent years, myopia prevention and control of teenagers has become a global public health problem. Studies have shown that myopia development is closely related to the peripheral hyperopic defocus of the retina, and the traditional optical lenses have the following defects:

[0003] 1. Single-vision lenses can only correct central vision and cannot intervene in the imaging quality of the peripheral retina, and cannot inhibit the growth of the eye axis;

[0004] 2. Single-microlens defocus lenses (such as multi-point ring band design) can generate a defocus signal, but there is a problem of single regulation dimension, and the eyeball is easy to adapt to the single defocus signal after long-term wearing, resulting in poor myopia prevention and control effect after long-term wearing due to neural adaptability.

[0005] In view of the above-mentioned defects and shortcomings of the prior art, the present application provides a double-curved surface defocus composite lens, which solves the technical problem of poor myopia prevention and control effect after long-term wearing of the defocus lens. SUMMARY

[0006] (I) Technical problem to be solved

[0007] In view of the above-mentioned defects and shortcomings of the prior art, the present application provides a double-curved surface defocus composite lens, which solves the technical problem of poor myopia prevention and control effect after long-term wearing of the defocus lens.

[0008] (II) Technical scheme

[0009] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present application comprises:

[0010] The embodiment of the present application provides a double-curved surface defocus composite lens, which comprises a central clear vision area, a discrete defocus area and a ring-shaped defocus area; the central clear vision area is located at the center of the double-curved surface defocus composite lens, and the central clear vision area can focus light beams on the retina; the discrete defocus area is arranged on the front curved surface of the double-curved surface defocus composite lens, and the discrete defocus area comprises a plurality of interval ring bands arranged in sequence from inside to outside with the central clear vision area as the center, and each ring band comprises a plurality of adjacent microlens bodies; the ring-shaped defocus area is arranged on the rear curved surface of the double-curved surface defocus composite lens, and the ring-shaped defocus area is arranged concentrically with the central clear vision area as the center; the ring-shaped defocus area has a ring-shaped structure and a radial width capable of covering a 10-20° visual angle area of the retina.

[0011] Preferably, the discrete defocus zone comprises 8-11 annular zones, the plurality of annular zones form a first defocus zone and a second defocus zone arranged in turn from inside to outside, the first defocus zone comprises 5 annular zones, the defocus amount of the microlens body of the annular zone in the first defocus zone is the same, the defocus amount of the microlens body of the annular zone in the second defocus zone is the same; when the refractive power of the central clear zone is 0-3.00D, the defocus amount of the microlens body of the annular zone in the first defocus zone and the second defocus zone is the same; when the refractive power of the central clear zone is greater than-3.00D, the defocus amount of the microlens body in the first defocus zone is less than the defocus amount of the microlens body in the second defocus zone.

[0012] Preferably, when the refractive power of the central clear zone is 0-3.00D, the defocus amount of the microlens body of the annular zone in the first defocus zone and the second defocus zone is +3.5D; when the refractive power of the central clear zone is greater than-3.00D, the defocus amount of the microlens body in the first defocus zone is +3.5D, and the defocus amount of the microlens body in the second defocus zone is +4.5D.

[0013] Preferably, the defocus amount of the annular defocus zone is +1.5D.

[0014] Preferably, the diameter of the microlens body in the discrete defocus zone is 0.5-1.5mm.

[0015] Preferably, the diameter of the central clear zone is 7-11mm.

[0016] Preferably, the spacing between the two adjacent annular zones is 1-3mm.

[0017] Preferably, the material of the hyperboloid defocus composite lens is acrylic acid ester.

[0018] The application also provides a hyperboloid defocus composite lens, comprising the above-mentioned hyperboloid defocus composite lens.

[0019] (Three) beneficial effects

[0020] The beneficial effects of the application are:

[0021] The hyperboloid defocus composite lens of the application comprises a central clear zone, a discrete defocus zone and an annular defocus zone, the annular defocus zone of the back curve produces continuous optical defocus stimulation, the discrete defocus zone of the front curve provides high-intensity discrete stimulation, the spatial superposition of the discrete defocus zone of the front curve and the annular defocus zone of the back curve forms multi-dimensional stimulation, thereby breaking through the limitation of neural adaptability and maintaining long-term prevention and control effect. The radial width of the annular defocus zone of the back curve can accurately cover the peripheral sensitive visual field area of the retina, combined with the microlens distribution of the discrete defocus zone of the front curve, forming continuous defocus intervention on the key area. By synchronously correcting central vision and regulating peripheral defocus state, the dual action inhibits the rapid growth of the eye axis, and improves the efficiency of myopia prevention and control. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 This is a front view of the hyperboloid defocusing composite lens of the present invention;

[0023] Figure 2 This is a rear view of a hyperboloid defocusing compound lens;

[0024] Figure 3 This is a cross-sectional view of a hyperboloid defocused composite lens.

[0025] [Explanation of Labels in the Attached Image]

[0026] 1: Central Visible Zone;

[0027] 2: Discrete defocus area; 21: First defocus area; 22: Second defocus area; 23: Ring; 231: Microlens body;

[0028] 3: Circular defocus zone. Detailed Implementation

[0029] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figure 1 As shown, this embodiment of the invention provides a hyperboloid defocusing composite lens, which includes a central clear vision zone 1, a discrete defocusing zone 2, and an annular defocusing zone 3. The central clear vision zone 1 is located at the center of the hyperboloid defocusing composite lens and enables the light beam to be focused onto the retina.

[0032] Discrete defocusing region 2 is disposed on the front curved surface of the hyperboloid defocusing compound lens. Discrete defocusing region 2 includes multiple rings 23 arranged sequentially from the inside out, with the central visible area 1 as the center. There is a gap between two adjacent rings 23. The rings 23 include multiple adjacent microlens bodies 231. Annular defocusing region 3 is disposed on the rear curved surface of the hyperboloid defocusing compound lens. Annular defocusing region 3 is concentrically arranged with the central visible area 1 as the center. Annular defocusing region 3 has an annular structure and its radial width can cover a 10-20° visual field area of ​​the retina. The 10-20° visual field area of ​​the retina is the sensitive visual field area.

[0033] In this embodiment, the hyperboloid defocus composite lens generates continuous optical defocus stimulation in the annular defocus area 3 of the rear surface and provides high-intensity discrete stimulation in the discrete defocus area 2 of the front surface. The spatial superposition of the discrete defocus area 2 of the front surface and the annular defocus area 3 of the rear surface forms multi-dimensional stimulation, thereby breaking through the limitations of neural adaptation and maintaining long-term prevention and control effects.

[0034] The radial width of the annular defocus area 3 of the posterior curve can accurately cover the peripheral sensitive visual field area of the retina. The 10°-20° visual angle area of the retina, i.e., the sensitive visual field area, in combination with the distribution of the microlens bodies 231 of the discrete defocus area 2 of the anterior curve, forms continuous defocus intervention on the key area. By synchronously correcting central vision and regulating peripheral defocus state, the dual action inhibits the rapid growth of the eye axis, and improves the efficiency of myopia prevention and control. The spatial superposition design of the discrete defocus area 2 of the anterior curve and the annular defocus area 3 of the posterior curve, through the synergistic effect of the double-curved surface optical structure, optimizes the transmission efficiency of the peripheral defocus signal while ensuring the clarity of the central vision.

[0035] In this embodiment, the diameter of the central clear area 1 is 7-11 mm, which can focus the light beam on the retina to ensure central vision correction, while limiting the loss of defocus signal caused by excessive expansion of the clear area. Among them, the anterior curve of the double-curved surface defocus composite lens has a first curvature radius, the posterior curve of the double-curved surface defocus composite lens has a second curvature radius, the first curvature radius and the second curvature radius are set to enable the light beam passing through the central clear area 1 to be focused on the retina, and the annular defocus area 3 has a third curvature radius, the third curvature radius is set to form the defocus amount required for the annular defocus area 3 between the first curvature radius.

[0036] In this embodiment, the discrete defocus area 2 includes 8-11 annular zones 23, and the plurality of annular zones 23 form a first defocus area 21 and a second defocus area 22 arranged in sequence from inside to outside. Among them, the first defocus area 21 includes 5 annular zones 23 close to the central clear area 1, and the remaining annular zones 23 in the discrete defocus area 2 are the second defocus area 22, the defocus amount of each microlens body 231 in the first defocus area 21 is the same, and the defocus amount of each microlens body 231 in the second defocus area 22 is the same. When the refractive power of the central clear area 1 is 0 to -3.00D, the defocus amount of the microlens body 231 of the annular zone 23 in the first defocus area 21 and the second defocus area 22 is the same, and when the refractive power of the central clear area 1 is greater than -3.00D, the defocus amount of the microlens body 231 in the first defocus area 21 is less than the defocus amount of the microlens body 231 in the second defocus area 22. In view of the characteristics of the reduced defocus sensitivity of the retina periphery of high-power patients, the difference between the inner and outer annular defocus amounts of the discrete defocus area 2 is designed to enhance the peripheral defocus signal strength, compensate for the defocus signal attenuation caused by eyeball deformation, and inhibit the eye axis growth efficiency by 18%-25%. In this embodiment, the defocus amount in the annular zone 23 of the discrete defocus area 2 avoids the discomfort caused by the gradient increase, and only by setting two gradients, the wearing comfort can be improved while further improving the efficiency of inhibiting the growth of the eye axis.

[0037] Preferably, when the refractive power of the central clear zone 1 is 0 to -3.00D, the defocus amount of the first defocus zone 21 and the second defocus zone 22 is the same and is +3.5D; when the refractive power of the central clear zone 1 is greater than -3.00D, the defocus amount of the micro-lens body 231 in the first defocus zone 21 is +3.5D, and the defocus amount of the micro-lens body 231 in the second defocus zone 22 is +4.5D. Since the retinal sensitivity of low refractive power (0 to -3.00D) patients is higher, using uniform defocus amount can avoid accommodation spasm caused by excessive stimulation and improve wearing comfort. Since the retinal sensitivity of high refractive patients is lower, the defocus amount of the outer ring is increased to +4.5D to compensate for the weakening of the defocus signal caused by the axial growth of high refractive patients.

[0038] In actual application process, when the refractive power of the central clear zone 1 is -4.00D, the discrete defocus zone 2 can be provided with 10 annular zones 23, the first defocus zone 21 includes 5 annular zones 23, and the defocus amount of the micro-lens body 231 in each annular zone 23 is +3.5D, the second defocus zone 22 includes 5 annular zones 23, and the defocus amount of the micro-lens body 231 in each annular zone 23 is +4.5D. Of course, it can also be provided with 8 annular zones 23, the first defocus zone 21 includes 5 annular zones 23, and the defocus amount of the micro-lens body 231 in each annular zone 23 is +3.5D, the second defocus zone 22 includes 3 annular zones 23, and the defocus amount of the micro-lens body 231 in each annular zone 23 is +4.5D.

[0039] When the refractive power of the central clear zone 1 is -2.00D, the discrete defocus zone 2 can be provided with 9 annular zones 23, and the defocus amount of the micro-lens body 231 in each annular zone 23 of the first defocus zone 21 and the second defocus zone 22 is +3.5D.

[0040] In the embodiment, the defocus amount of the annular defocus zone 3 is +1.5D, and the discrete defocus zone 2 of the front curve +3.5D / +4.5D forms a defocus ratio of 2.3:1 to 3:1, a composite defocus signal is generated by hyperboloid superposition, the peripheral cone cells and rod cells double channels of the retina are stimulated to improve the efficiency of the axial growth signal by about 40%, and the defocus amount of the annular defocus zone 3 is +1.5D, which avoids accommodation lag caused by excessive intervention and ensures the clarity of central vision.

[0041] Preferably, the diameter of the micro-lens body 231 in the discrete defocus zone 2 is 0.5-1.5mm. The spacing between adjacent two annular zones 23 is 1-3mm, which avoids the problems of poor comfort when the front curve defocus is superimposed due to too small gap and poor defocus effect due to too large gap.

[0042] In the embodiment, the material of the double-curved surface defocus composite lens is acrylic acid ester. The acrylic acid ester has a refractive index of 1.49, an Abbe number of 58, a low dispersion coefficient, a density of 1.1 g / cm3, and a low weight, and is comfortable to wear, which is suitable for teenagers.

[0043] Embodiment two

[0044] The embodiment provides a double-curved surface defocus composite lens, which comprises the double-curved surface defocus composite lens in the embodiment one. Since the double-curved surface defocus composite lens comprises the double-curved surface defocus composite lens, the annular defocus area 3 of the back curve generates a persistent optical defocus stimulation, the discrete defocus area 2 of the front curve provides a high-intensity discrete stimulation, and the spatial superposition of the discrete defocus area 2 of the front curve and the annular defocus area 3 of the back curve forms a multi-dimensional stimulation, thereby breaking through the limitation of neural adaptability and maintaining a long-term prevention and control effect.

[0045] In the description of the present application, it should be understood that the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0046] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0048] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0049] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can modify, modify, replace and modify the above-described embodiments within the scope of the present application.

Claims

1. A biconic through-focus compound lens characterized in that, The double-curved defocus composite lens comprises a central clear zone, a discrete defocus zone and a ring-shaped defocus zone. The central clear zone is located at the center of the double-curved defocus composite lens, and the central clear zone can focus light beams on the retina. The discrete defocus zone is arranged on the front curve of the double-curved defocus composite lens, and the discrete defocus zone comprises a plurality of interval annular zones arranged in sequence from inside to outside with the central clear zone as the center, and each annular zone comprises a plurality of micro-lens bodies arranged adjacently. The ring-shaped defocus zone is arranged on the back curve of the double-curved defocus composite lens, and the ring-shaped defocus zone is arranged concentrically with the central clear zone as the center. The ring-shaped defocus zone is in a ring structure and has a radial width capable of covering a 10-20° visual angle region of the retina. The front curve has a first curvature radius, the back curve has a second curvature radius, and the ring-shaped defocus zone has a third curvature radius, and the third curvature radius is arranged to form a defocus amount required for the ring-shaped defocus zone with the first curvature radius.

2. The double-curved defocus composite lens according to claim 1, wherein The discrete defocus zone comprises 8-11 annular zones, and the annular zones form a first defocus zone and a second defocus zone arranged in sequence from inside to outside. The first defocus zone comprises 5 annular zones, the micro-lens bodies in the annular zones in the first defocus zone have the same defocus amount, and the micro-lens bodies in the annular zones in the second defocus zone have the same defocus amount. When the refractive power of the central clear zone is 0~-3.00D, the micro-lens bodies in the annular zones in the first defocus zone and the second defocus zone have the same defocus amount. When the refractive power of the central clear zone is greater than -3.00D, the defocus amount of the micro-lens bodies in the first defocus zone is smaller than the defocus amount of the micro-lens bodies in the second defocus zone.

3. The double-curved defocus composite lens according to claim 2, wherein When the refractive power of the central clear zone is 0~-3.00D, the micro-lens bodies in the annular zones in the first defocus zone and the second defocus zone have a defocus amount of +3.5D. When the refractive power of the central clear zone is greater than -3.00D, the defocus amount of the micro-lens bodies in the first defocus zone is +3.5D, and the defocus amount of the micro-lens bodies in the second defocus zone is +4.5D.

4. The double-curved defocus composite lens according to claim 3, wherein The defocus amount of the ring-shaped defocus zone is +1.5D.

5. The double-curved defocus composite lens according to claim 1, wherein The diameter of the micro-lens bodies in the discrete defocus zone is 0.5-1.5mm.

6. The double-curved defocus composite lens according to claim 1, wherein The diameter of the central clear zone is 7-11mm.

7. The double-curved defocus composite lens according to claim 1, wherein The interval between two adjacent annular zones is 1-3mm.

8. The double-curved defocus composite lens according to claim 1, wherein The material of the double-curved defocus composite lens is acrylic acid ester.

9. A biconvex through-focus compound spectacle lens characterized by: The double-curved, defocus compound lens including any one of claims 1-8. The double-curved, defocus compound lens including any one of claims 1-8.

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