Round reverse microstructure array lens

Abstract

The invention discloses a circular reverse micro-structure array lens, and particularly relates to the field of optical myopia glasses, the circular reverse micro-structure array lens comprises a presbyopic lens body, the presbyopic lens body comprises a main lens structure and an aspheric micro-lens structure, the main lens structure comprises a first optical surface and a second optical surface, and the aspheric micro-lens structure comprises an aspheric micro-lens structure. The aspheric micro lens structure is arranged on one side of the second optical surface, and the aspheric micro lens structure is of a circular composite ring belt structure. The circular composite ring belt design is adopted, the jumping feeling of an image caused by a single micro-lens structure is avoided, the dizziness feeling when a child wears the glasses is reduced, surrounding type continuous defocusing is formed in the center, personalized compensation is conducted on the field angle defocusing amount, the decreasing type defocusing amount is (-4.5 D)-(-4.0 D), continuous hyperopia defocusing is formed, and the visual field angle defocusing effect is improved. And the imaging quality of the micro-lens array of each ring on the periphery is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical presbyopic glasses, and specifically to a circular reverse microstructure array lens. Background Art

[0002] Hyperopia reserve, simply speaking, is the reserve of the eye's accommodation ability, which is generally used for children. Professionally speaking: Hyperopia reserve amount: Most of the hyperopia before emmetropization is physiological hyperopia, which is a kind of "hyperopia reserve" and can be understood as a "buffer zone" to "resist" the development into myopia. Insufficient hyperopia reserve means that the naked eye vision is normal, and although the refractive state after cycloplegic refraction does not reach the myopia standard, the hyperopia degree is lower than the physiological value range of the corresponding age group. For example, the physiological refractive power of children aged 4 - 5 years old is 150 - 200 degrees of hyperopia, then there is a hyperopia reserve of 150 - 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 has been consumed too much and they may develop myopia earlier.

[0003] Hyperopia reserve is equivalent to a "buffer zone". If children have bad eye - using habits, such as looking at electronic products for a long time and incorrect reading and writing postures, it is possible to consume the hyperopia reserve too quickly and accelerate the development of emmetropization. If there is still a habit of overusing the eyes when the hyperopia reserve is consumed quickly, it may be out of control and develop into myopia.

[0004] Using the principle of peripheral defocus, wearing presbyopic multi - point microlenses and projecting the peripheral image in front of the retina can effectively control the growth of the eye axis, slow down the consumption of children's hyperopia reserve, and reduce the risk of children getting myopia. Summary of the Invention

[0005] The purpose of the present invention is to provide a circular reverse microstructure array lens to solve the problems raised in the above - mentioned background art.

[0006] To solve the above - mentioned technical problems, the present invention provides the following technical solution: A circular reverse microstructure array lens, including a presbyopic lens body, the presbyopic lens body includes a main lens structure and an aspherical microlens structure, the main lens structure includes a first optical surface and a second optical surface, the aspherical microlens structure is arranged on one side of the second optical surface, and the aspherical microlens structure is arranged as a circular composite zone structure.

[0007] In a preferred embodiment, the first optical surface is close to the user's eye side, and the circular composite zone structure of the aspherical microlens structure is provided with nine circles.

[0008] In a preferred embodiment, the circular composite annular structure includes, from the innermost to the outermost, a first circular composite annular ring, a second circular composite annular ring, a third circular composite annular ring, a fourth circular composite annular ring, a fifth circular composite annular ring, a sixth circular composite annular ring, a seventh circular composite annular ring, an eighth circular composite annular ring, and a ninth circular composite annular ring.

[0009] In a preferred embodiment, the defocus amount of the aspherical microlenses in the circular composite annular structure ranges from (-4.5D) to (-4.0D), and the defocus amount of the aspherical microlenses in the first circular composite annular ring and the second circular composite annular ring is -4.5D, while the defocus amount of the aspherical microlenses in the third circular composite annular ring, the fourth circular composite annular ring, the fifth circular composite annular ring, the sixth circular composite annular ring, the seventh circular composite annular ring, the eighth circular composite annular ring, and the ninth circular composite annular ring is -4.0D.

[0010] In a preferred embodiment, the annular region range of the circular composite annular structure is 10.25 mm - 50.38 mm.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0012] The present invention adopts a circular composite annular design, which avoids the jumping feeling of the image caused by a single microlens structure, reduces the dizziness feeling when children wear glasses, forms a surrounding continuous defocus at the center, compensates for the defocus amount of the field of view angle in a personalized manner, and the decreasing defocus amount ranges from (-4.5D) to (-4.0D), forming a continuous hyperopic defocus and improving the imaging quality of the microlens arrays in each peripheral annular zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0014] Figure 1 is a schematic cross-sectional structure diagram of the presbyopic lens body of the present invention;

[0015] Figure 2 is a schematic plan structure diagram of the presbyopic lens body of the present invention.

[0016] In the figure: 1, main lens structure; 11, first optical surface; 12, second optical surface; 2, aspherical microlens structure; 21, first circular composite annular ring; 22, second circular composite annular ring; 23, third circular composite annular ring; 24, fourth circular composite annular ring; 25, fifth circular composite annular ring; 26, sixth circular composite annular ring; 27, seventh circular composite annular ring; 28, eighth circular composite annular ring; 29, ninth circular composite annular ring. Detailed implementation mode

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figure 1 - Figure 2 , the present invention provides a circular reverse micro-structure array lens, including a presbyopic lens body. The presbyopic lens body includes a main lens structure 1 and an aspherical microlens structure 2. The main lens structure 1 includes a first optical surface 11 and a second optical surface 12. The aspherical microlens structure 2 is arranged on one side of the second optical surface 12, and the aspherical microlens structure 2 is arranged in a circular composite annular structure.

[0019] The specific processing technology of the circular reverse micro-structure array lens is as follows:

[0020] (1) Use a nano-precision engraving machine to engrave the qualified surface shape required by this patent in the steel film;

[0021] (2) Use the steel film as the A mold, and then match different curvature glass B molds according to the photometric requirements;

[0022] (3) Close the mold, and use tape to wind and fix the AB mold according to the required central thickness;

[0023] (4) Fill, and fill the photo-curing monomer with a refractive index of 1.566 / 1.600 / 1.650 into the assembled mold;

[0024] (5) Photo-cure, place the filled mold with the glass surface facing up towards the light source for photo-curing;

[0025] (6) Open the mold and separate the photo-cured mold lens;

[0026] (7) Hardening and coating.

[0027] In a preferred implementation mode, the first optical surface 11 is close to the user's eye side, and the circular composite annular structure of the aspherical microlens structure 2 is provided with nine circles.

[0028] In a preferred embodiment, the circular composite annulus structure includes, from the innermost to the outermost, a first circular composite annulus loop 21, a second circular composite annulus loop 22, a third circular composite annulus loop 23, a fourth circular composite annulus loop 24, a fifth circular composite annulus loop 25, a sixth circular composite annulus loop 26, a seventh circular composite annulus loop 27, an eighth circular composite annulus loop 28, and a ninth circular composite annulus loop 29.

[0029] In a preferred embodiment, the defocus amount of the aspherical microlenses in the circular composite annulus structure ranges from (-4.5D) to (-4.0D), and the defocus amount of the aspherical microlenses in the first circular composite annulus loop 21 and the second circular composite annulus loop 22 is -4.5D, while the defocus amount of the aspherical microlenses in the third circular composite annulus loop 23, the fourth circular composite annulus loop 24, the fifth circular composite annulus loop 25, the sixth circular composite annulus loop 26, the seventh circular composite annulus loop 27, the eighth circular composite annulus loop 28, and the ninth circular composite annulus loop 29 is -4.0D.

[0030] In a preferred embodiment, the annulus region range of the circular composite annulus structure is 10.25 mm - 50.38 mm. The specific circular composite annulus region range and the number of circular composite annulus microlenses in each loop are shown in Table 1:

[0031]

[0032]

[0033] Table 1

[0034] The present invention adopts a circular composite annulus design, which avoids the jumping feeling of the image caused by a single microlens structure, reduces the dizziness feeling when children wear glasses, forms a surrounding continuous defocus at the center, compensates for the defocus amount of the field of view angle individually, and the decreasing defocus amount is from (-4.5D) to (-4.0D), forming a continuous hyperopic defocus and improving the imaging quality of the microlens arrays in each peripheral annulus.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A circular reverse micro-structure array lens, comprising a presbyopic lens body, characterized in that: The presbyopic lens body includes a main lens structure (1) and an aspherical microlens structure (2). The main lens structure (1) includes a first optical surface (11) and a second optical surface (12). The aspherical microlens structure (2) is disposed on one side of the second optical surface (12). The aspherical microlens structure (2) is arranged as a circular composite zone structure, and the zone area range of the circular composite zone structure is 10.25 mm - 50.38 mm.

2. The circular reverse micro-structure array lens according to claim 1, characterized in that: The first optical surface (11) is close to the user's eye side, and the circular composite zone structure of the aspherical microlens structure (2) is provided with nine circles.

3. The circular reverse micro-structure array lens according to claim 2, characterized in that: The circular composite zone structure is, from the outermost to the innermost, the first circular composite zone circle (21), the second circular composite zone circle (22), the third circular composite zone circle (23), the fourth circular composite zone circle (24), the fifth circular composite zone circle (25), the sixth circular composite zone circle (26), the seventh circular composite zone circle (27), the eighth circular composite zone circle (28), and the ninth circular composite zone circle (29).

4. The circular reverse micro-structure array lens according to claim 3, characterized in that: In the circular composite zone structure, the defocus amount of the aspherical microlenses ranges from (-4.5 D) to (-4.0 D), and the defocus amount of the aspherical microlenses in the first circular composite zone circle (21) and the second circular composite zone circle (22) is -4.5 D. The defocus amount of the aspherical microlenses in the third circular composite zone circle (23), the fourth circular composite zone circle (24), the fifth circular composite zone circle (25), the sixth circular composite zone circle (26), the seventh circular composite zone circle (27), the eighth circular composite zone circle (28), and the ninth circular composite zone circle (29) is -4.0 D.

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