Reverse micro-lens array children's hyperopia lens
By designing the reverse microlens array and double-layer UV-resistant layer in children's hyperopia lenses, the problem of insufficient UV-proof capability of existing hyperopia lenses is solved, achieving a smoother transition and stronger UV-resistant protection.
Patent Information
- Application Number
- CN202420336368.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-02-23
AI Technical Summary
Existing hyperopia lenses have insufficient ability to protect against UV, especially when children are outdoors, which can easily lead to eye discomfort and myopia.
A reverse microlens array children's hyperopia lens is designed. By setting a first anti-ultraviolet layer on the inside of the presbyopia lens and a composite anti-ultraviolet layer on the outside of the presbyopia lens, the double-layer setting greatly enhances the lens' anti-ultraviolet ability.
A smoother transition is achieved, reducing discomfort during focus switching, and significantly enhancing the lens's UV resistance and protecting children's eyes.
Smart Images
Figure CN222672069U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lenses, in particular to a reverse microlens array children's hyperopia lens. Background Art
[0002] What is hyperopia reserve? In simple terms, hyperopia reserve is the reserve of eye adjustment ability, which is generally used for children. From a professional point of view: Hyperopia reserve: Hyperopia before emmetropization is mostly physiological hyperopia, which is a kind of "hyperopia reserve", which can be understood as a "buffer zone" to "counter" the development of myopia. Insufficient hyperopia reserve means that the naked eye vision is normal. Although the refractive state after mydriasis optometry does not reach the myopia standard, the hyperopia degree is lower than the physiological value range of the corresponding age group. For example, if the physiological refractive power of children aged 4 to 5 years old is 150 to 200 degrees of hyperopia, there is a hyperopia reserve of 150 to 200 degrees. If the physiological refractive power of children in this age group is only 50 degrees of hyperopia, it means that their hyperopia reserve is consumed too much and myopia may occur earlier.
[0003] In simple terms: Every newborn has a "deposit" in the "bank" of his eyes when he is born. This money is called "hyperopia reserve". As the child grows older, his eyeballs gradually become larger, and the eye load gradually increases, which will slowly "spend money" and gradually consume the "deposit", that is, the hyperopia reserve. When the child grows to 12 years old, the eyeball is close to the size of an adult and no longer "spends money".
[0004] If a child overuses his eyes and "spends all his savings" ahead of time, then any more money he spends will only result in "debts", which is myopia. If a child has developmental abnormalities and still has "a lot of savings" at the age of 12, then he will become hyperopic when he reaches adulthood. Normal children will have their "savings" in the bank spent exactly by the age of 12, which is emmetropia. When the hyperopic reserve is too high, accommodation cannot be compensated, resulting in amblyopia in children. When the hyperopia degree is too high, excessive use of accommodation can easily cause eye discomfort and fatigue. Excessive use of accommodation may also cause increased convergence of the two eyes, causing esotropia, which is called refractive accommodative esotropia. Therefore, how to adjust hyperopia is a key issue that needs to be addressed now. In addition, most hyperopic lenses do not have good UV protection, and most children like to do outdoor activities, so this is also a major problem that needs to be solved in this project. Utility Model Content
[0005] The main purpose of the utility model is to provide a reverse microlens array children's hyperopia lens, which gradually reduces the defocus amount and extends outward by designing a decreasing defocus part. This reverse design helps to achieve a smoother transition and reduce the discomfort when switching focus. Then, by arranging a first anti-ultraviolet layer on the inner side of the reading lens and a composite anti-ultraviolet layer on the outer side of the reading lens, the double-layer arrangement greatly enhances the overall anti-ultraviolet ability of the reading lens.
[0006] In order to solve the above-mentioned technical problems, the utility model discloses a reverse microlens array children's hyperopia lens, comprising: a reading lens; a decreasing defocus portion arranged in the middle of the reading lens, the decreasing defocus portion comprising a first defocus zone arranged in the middle of the reading lens, a second defocus zone arranged outside the first defocus zone, and a third defocus zone arranged outside the second defocus zone, the defocus amount of the first defocus zone is greater than the defocus amount of the second defocus zone, and the defocus amount of the second defocus zone is greater than the defocus amount of the third defocus zone; a silicon dioxide layer arranged on the inner side of the reading lens; a first anti-ultraviolet layer arranged on the inner side of the silicon dioxide layer; a composite anti-ultraviolet layer arranged on the outer side of the reading lens, the composite anti-ultraviolet layer comprising a zirconium dioxide layer arranged on the outer side of the reading lens and a titanium pentoxide layer arranged on the outer side of the zirconium dioxide layer; an anti-scratch layer arranged on the outer side of the composite anti-ultraviolet layer, and an anti-oil layer arranged on the outer side of the anti-scratch layer.
[0007] According to an embodiment of the present invention, the defocus amount of the first defocus zone is -4D, the defocus amount of the second defocus zone is -4.5D, and the defocus amount of the third defocus zone is -5D.
[0008] According to one embodiment of the present invention, the zirconium dioxide layer and the titanium pentoxide layer have the same thickness.
[0009] Compared with the prior art, the present application can obtain the following technical effects:
[0010] 1) By designing a decreasing defocus part, the defocus amount is gradually reduced and extended outward. This reverse design helps to achieve a smoother transition and reduce discomfort when switching focus. Then, by setting a first anti-ultraviolet layer on the inside of the reading lens and a composite anti-ultraviolet layer on the outside of the reading lens, the double-layer setting greatly enhances the overall anti-ultraviolet ability of the reading lens.
[0011] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0013] Figure 1 This is a front view of the reverse microlens array children's hyperopia lens according to an embodiment of the present application.
[0014] Figure 2 This is a front view of the reverse microlens array children's hyperopia lens according to an embodiment of the present application.
[0015] Figure ID
[0016] Reading lens 10, decreasing defocus portion 20, first defocus area 21, second defocus area 22, third defocus area 23, silicon dioxide layer 30, first anti-ultraviolet layer 40, composite anti-ultraviolet layer 50, zirconium dioxide layer 60, titanium pentoxide layer 70, anti-scratch layer 80, anti-oil layer 90. DETAILED DESCRIPTION
[0017] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0018] Please refer to Figure 1 and Figure 2 , Figure 1 This is a front view of the reverse microlens array children's hyperopia lens 10 according to an embodiment of the present application. Figure 2 1 is a front view of a reverse microlens array children's hyperopia lens 10 according to an embodiment of the present application. As shown in the figure, a reverse microlens array children's hyperopia lens 10 comprises: a reading lens 10; a decreasing defocusing portion 20 arranged in the middle of the reading lens 10, wherein the decreasing defocusing portion 20 comprises a first defocusing area 21 arranged in the middle of the reading lens 10, a second defocusing area 22 arranged outside the first defocusing area 21, and a third defocusing area 23 arranged outside the second defocusing area 22, wherein the defocusing amount of the first defocusing area 21 is greater than the defocusing amount of the second defocusing area 22, and the defocusing amount of the second defocusing area 22 is greater than the defocusing amount of the third defocusing area. The defocus amount of the focal area 23; the silicon dioxide layer 30 arranged on the inner side of the reading lens 10; the first anti-ultraviolet layer 40 arranged on the inner side of the silicon dioxide layer 30; the composite anti-ultraviolet layer 50 arranged on the outer side of the reading lens 10, the composite anti-ultraviolet layer 50 includes a zirconium dioxide layer 60 arranged on the outer side of the reading lens 10 and a titanium pentoxide layer 70 arranged on the outer side of the zirconium dioxide layer 60; the anti-scratch layer 80 arranged on the outer side of the composite anti-ultraviolet layer 50, and the anti-oil layer 90 arranged on the outer side of the anti-scratch layer 80.
[0019] In an embodiment of the utility model, a decreasing defocus portion 20 is arranged in the middle of the reading lens 10, and the decreasing defocus portion 20 includes a first defocus zone 21 arranged in the middle of the reading lens 10, a second defocus zone 22 arranged outside the first defocus zone 21, and a third defocus zone 23 arranged outside the second defocus zone 22. The defocus amount of the first defocus zone 21 is greater than the defocus amount of the second defocus zone 22, the defocus amount of the second defocus zone 22 is greater than the defocus amount of the third defocus zone 23, the defocus amount of the first defocus zone 21 is -4D, the defocus amount of the second defocus zone 22 is -4.5D, and the defocus amount of the third defocus zone 23 is -5D. By designing the decreasing defocus portion 20, the defocus amount is gradually reduced and extended outward. This reverse design helps to achieve a smoother transition and reduce discomfort when switching focus.
[0020] Furthermore, a silicon dioxide layer 30 is provided inside the reading lens 10 to enhance the strength and hardness of the inside of the reading lens 10 and prevent it from being easily damaged. Then, a first anti-ultraviolet layer 40 is provided inside the silicon dioxide layer 30, and a composite anti-ultraviolet layer 50 is provided outside the reading lens 10. The composite anti-ultraviolet layer 50 includes a zirconium dioxide layer 60 provided outside the reading lens 10 and a titanium pentoxide layer 70 provided outside the zirconium dioxide layer 60. The zirconium dioxide layer 60 and the titanium pentoxide layer 70 have the same thickness. By providing the first anti-ultraviolet layer 40 inside the reading lens 10 and providing the composite anti-ultraviolet layer 50 outside the reading lens 10, the double-layer setting greatly enhances the overall anti-ultraviolet capability of the reading lens 10.
[0021] Furthermore, an anti-scratch layer 80 is disposed outside the composite anti-ultraviolet layer 50 to greatly enhance the anti-scratch performance. Then, an anti-oil layer 90 is disposed outside the anti-scratch layer 80 to prevent the reading lens 10 from being contaminated by oil.
Claims
1. A reverse microlens array children's hyperopia lens, characterized in that: include: Reading lenses; A decreasing defocusing portion is arranged in the middle of the reading lens, the decreasing defocusing portion comprises a first defocusing area arranged in the middle of the reading lens, a second defocusing area arranged outside the first defocusing area, and a third defocusing area arranged outside the second defocusing area, the defocusing amount of the first defocusing area is greater than the defocusing amount of the second defocusing area, and the defocusing amount of the second defocusing area is greater than the defocusing amount of the third defocusing area; A silicon dioxide layer disposed on the inner side of the reading lens; A first anti-ultraviolet layer disposed inside the silicon dioxide layer; A composite anti-ultraviolet layer is arranged on the outer side of the reading lens, wherein the composite anti-ultraviolet layer comprises a zirconium dioxide layer arranged on the outer side of the reading lens and a titanium pentoxide layer arranged on the outer side of the zirconium dioxide layer; An anti-scratch layer is arranged on the outer side of the composite anti-ultraviolet layer, An anti-oil layer is arranged on the outer side of the anti-scratch layer.
2. The inverse microlens array children's hyperopia lens according to claim 1, characterized in that: The defocus amount of the first defocus area is -4D, the defocus amount of the second defocus area is -4.5D, and the defocus amount of the third defocus area is -5D.
3. The inverse microlens array children's hyperopia lens according to claim 1, characterized in that: The zirconium dioxide layer and the titanium pentoxide layer have the same thickness.