Multi-point out-of-focus lens with high refractive index

Abstract

The utility model discloses a high-refractive-index multi-point defocus lens, which comprises a resin substrate plated with a high-refractive-index film layer, and the resin substrate is provided with a central correction light area, a defocus light-increasing area and a peripheral visual area. Wherein the out-of-focus light transmission increasing area is provided with a point diffusion anti-reflection area located on the inner ring and an out-of-focus zone area located on the outer ring, the point diffusion anti-reflection area is provided with a plurality of concave anti-reflection units, the out-of-focus zone area is provided with a plurality of circles of annular out-of-focus zones, the out-of-focus zones are composed of a plurality of convex out-of-focus micro-transmission units, and the out-of-focus amount of the out-of-focus zones is gradually decreased from inside to outside. According to the utility model, the out-of-focus light transmission increasing area is designed on the resin substrate, and the inner and outer ring point diffusion anti-reflection areas and the out-of-focus zone areas are formed, so that on one hand, anti-reflection is carried out, and on the other hand, an out-of-focus ring zone is formed for out-of-focus conversion, thereby ensuring the visual area conversion requirement of a user, avoiding eye discomfort of a myopia user, deepening degree and enhancing myopia prevention and control; and the high-refractive-index film layer is matched with the anti-reflection unit, so that the refractive index can be further increased, and the optical anti-reflection performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lenses, specifically relates to a high refractive index multi-point defocus lens. BACKGROUND

[0002] Because the period of adolescence is the stage of rapid physical development, and in the process of learning, the demand for eyes is very large, the eyeball needs frequent adjustment, and the stretchability is large, it is easy to form myopia. Because of long-term wearing of glasses, whether looking far or near has the habit of wearing glasses, which will inevitably cause the disorder of the eyes, cause the eyeball to be over-tensed, and cause the vicious cycle of continuous increase of the degree of glasses.

[0003] Ordinary myopia glasses only meet the needs of looking far, and are not suitable for the habits of looking far and writing of teenagers, and do not meet the eye mechanism of teenagers. When switching from looking far to looking near, the eyeball axis cannot keep up with the adjustment speed, which will cause the vision to be behind the eyeball axis, and repeated multiple times will cause eye fatigue and further deepen the degree of myopia. And with the increase of the degree of the lens, the thickness increases, and the wearing is extremely uncomfortable. Therefore, it is of great significance to design a high refractive index optical defocus lens. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model wants to solve the technical problem, provides a kind of high refractive index multi-point defocus lens, to avoid the refractive index of previous myopia lens low, along with the view area conversion, the trouble of defocus effect being worse.

[0005] In order to solve the above technical problem, the utility model discloses a kind of high refractive index multi-point defocus lens, it includes:

[0006] Resin substrate plated with high refractive index film layer, resin substrate has central correction light area, defocus antireflection light area annularly arranged in central correction light area and peripheral view area located at edge;Wherein defocus antireflection light area has point diffusion antireflection zone located in inner ring and defocus band area located in outer ring, point diffusion antireflection zone is provided with a plurality of recessed antireflection units, defocus band is provided with a plurality of annular defocus bands of defocus band, and defocus band is by a plurality of convex defocus micro-transparency units, and the defocus amount of defocus band decreases from inside to outside.

[0007] According to one embodiment of the utility model, wherein the above-mentioned central correction light area is circular, and the diameter is 7-9mm.

[0008] According to one embodiment of the utility model, wherein the above-mentioned point diffusion antireflection zone ring width is 10-14mm, and the defocus band area ring width is 12-18mm.

[0009] According to one embodiment of the utility model, wherein the above-mentioned antireflection unit and defocus micro-transparency unit are circular, and the diameter of antireflection unit is greater than the diameter of defocus micro-transparency unit.

[0010] According to an embodiment of the present application, the defocus zone is provided with 5-7 rings.

[0011] According to an embodiment of the present application, the outermost ring of the defocus zone has a defocus amount of 3.5D, and the innermost ring has a defocus amount of 5.0D.

[0012] According to an embodiment of the present application, the high-refractive film layer is provided as a silicon dioxide film layer, and is plated with at least 7 layers.

[0013] Compared with the prior art, the present application can achieve the following technical effects:

[0014] By designing the defocus anti-reflection light zone on the resin substrate, the point diffusion anti-reflection zone and the defocus zone are formed, on one hand, the anti-reflection is performed, and on the other hand, the defocus ring is formed to perform defocus conversion, which ensures the user's visual area conversion requirement, avoids the myopic user's eye discomfort, deepens the degree, enhances the myopia prevention and control, and the high-refractive film layer cooperates with the anti-reflection unit to further increase the refractive index and improve the optical anti-reflection property.

[0015] Of course, any product implementing the present application does not necessarily need to achieve all the technical effects described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 is a high-refractive multi-point defocus lens schematic diagram of an embodiment of the present application.

[0018] IDENTIFICATION OF DRAWINGS

[0019] Resin substrate 10, central correction light zone 20, defocus anti-reflection light zone 30, point diffusion anti-reflection zone 31, defocus zone 32, peripheral visual area 40, anti-reflection unit 50, defocus zone 60. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail below with reference to the drawings and embodiments, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0021] Please refer to Figure 1 , Figure 1 is a high-refractive multi-point defocus lens schematic diagram of an embodiment of the present application.

[0022] As shown in the figure, a high refractive index multi-point defocus lens comprises a resin substrate 10 coated with a high refractive index film layer, the resin substrate 10 having a central correction light area 20, a defocus anti-reflection light area 30 arranged around the central correction light area 20, and a peripheral viewing area 40 at the edge; wherein the defocus anti-reflection light area 30 has a point diffusion anti-reflection area 31 at the inner ring and a defocus band area 32 at the outer ring, the point diffusion anti-reflection area 31 is provided with a plurality of recessed anti-reflection units 50, and the defocus band area 32 is provided with a plurality of annular defocus bands 60, the defocus band 60 is composed of a plurality of convex defocus micro-transparency units, and the defocus amount of the defocus band 60 decreases from inside to outside.

[0023] In an embodiment of the present application, the surface of the resin substrate 10 is coated with a high refractive index film layer to increase the refractive index of the lens. In addition, the resin substrate 10 is formed by curing the resin in a steel mold, and the surface of the steel mold is engraved with a model of the defocus anti-reflection light area 30 by a carving machine. In this way, the corresponding defocus anti-reflection light area can be formed on the surface of the resin substrate 10 during curing and molding, and the defocus transition is realized.

[0024] In detail, the central part of the inner ring of the resin substrate 10 is the central correction light area 20, which provides a standard myopia degree to achieve vision correction. The defocus anti-reflection light area 30 is divided into a point diffusion anti-reflection area 31 and a defocus band area 32 at the outer ring, wherein the point diffusion anti-reflection area 31 is densely covered with recessed anti-reflection units 50, which increase light diffusion and improve anti-reflection effect through recessed design. The defocus band area 32 is composed of a plurality of defocus bands 60, and the defocus band 60 is composed of defocus micro-transparency units to form varying defocus amounts, complete defocus transition, and gradually weaken the defocus amount from inside to outside to avoid eye discomfort of myopic users and deepening of the degree.

[0025] Preferably, the central correction light area 20 is circular with a diameter of 7-9mm to meet the area requirement of the central correction viewing area.

[0026] The ring width of the point diffusion anti-reflection area 31 is 10-14mm, and the ring width of the defocus band area 32 is 12-18mm to form a variable area of defocus anti-reflection.

[0027] The anti-reflection units 50 and the defocus micro-transparency units of the present application are circular, and the diameter of the anti-reflection units 50 is greater than that of the defocus micro-transparency units to ensure the anti-reflection effect, and the diameter of the defocus micro-transparency units is relatively small to accurately control the defocus amount.

[0028] Preferably, the defocus band 60 is provided with 5-7 rings. The outermost ring of the defocus band 60 has a defocus amount of 3.5D, and the innermost ring has a defocus amount of 5.0D to realize the transition of the defocus amount.

[0029] In addition, the high refractive index film layer is a silicon dioxide film layer coated with at least 7 layers to increase the refractive index of the lens, preferably with a refractive index of 1.7 or more.

[0030] In summary, the utility model discloses a design defocus antireflection light district on resin base sheet, and forms the point diffusion antireflection district and defocus band area of inner and outer rings, on the one hand, carries out antireflection, on the other hand, forms defocus ring and carries out defocus conversion, guarantees user visual field conversion demand, avoids myopic user eye discomfort, degree deepening, strengthens myopia prevention and control, and high refractive index film layer cooperation antireflection unit can further increase refractive index, improves optical antireflection.

[0031] The above description shows and describes several preferred embodiments of the utility model, but as mentioned before, the utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be changed within the scope of the utility model concept described herein by the above teaching or related technical or knowledge. The change and variation made by the person in the art without departing from the spirit and scope of the utility model should be within the protection scope of the utility model claims attached.

Claims

1. A multi-vision, multi-vision lens having a high refractive index, characterized in that, The application relates to a resin substrate plated with a high-refractive film layer, which has a central correction light area, a defocused and increased-transmittance light area arranged around the central correction light area, and a peripheral viewing area located at the edge; wherein the defocused and increased-transmittance light area has a point-diffusion and increased-transmittance area located at the inner ring and a defocused band area located at the outer ring, the point-diffusion and increased-transmittance area is provided with a plurality of concave increased-transmittance units, the defocus band area is provided with a plurality of annular defocus bands, the defocus band is composed of a plurality of convex defocus micro-transparency units, and the defocus amount of the defocus band decreases from the inside to the outside. The central correction light area is circular, and the diameter is 7-9 mm.

2. The high refractive index multi-point defocus lens according to claim 1, characterized in that, The ring width of the point-diffusion and increased-transmittance area is 10-14 mm, and the ring width of the defocus band area is 12-18 mm.

3. The high refractive index multi-point defocus lens according to claim 1, characterized in that, The increased-transmittance units and the defocus micro-transparency units are circular, and the diameter of the increased-transmittance units is larger than that of the defocus micro-transparency units.

4. The multi-vision, multi-focal lens of claim 1, wherein, The defocus band is provided with 5-7 rings.

5. The high refractive index multi-point defocus lens according to claim 1, characterized in that, The defocus amount of the outermost ring of the defocus band is 3.5D, and the defocus amount of the innermost ring is 5.0D.

6. The multi-vision, multi-focal lens of claim 1, wherein, The high-refractive film layer is a silicon dioxide film layer, and is plated with at least 7 layers.

7. The multi-vision, multi-focal lens of claim 1, wherein, ​

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