Five-partition peripheral out-of-focus lens based on eye view field characteristics

Abstract

The utility model discloses a five-partition peripheral out-of-focus lens based on eye view field characteristics, which comprises a lens body and an out-of-focus functional area processed on the lens body, and the out-of-focus functional area is composed of a micro lens array; the defocus functional area comprises a central shared defocus area, a bitamporal area, a proximal area, a nasal area and a hyperopia area; the central shared defocus region is positioned on the outer ring of the micro-lens structure-free region in the center of the lens; the hyperopia area is located above the central sharing area, the nasal side area is located in the area close to the nose side, the proximal area is located below the central sharing area, and the bitamporal area is the rest area; the absolute value relation of the defocusing amount of the micro-lens array of the five functional areas meets the condition that the near-use area > = the nasal side area > = the central shared defocusing area > = the hyperopia area > = the bitamporal area. The utility model has the beneficial effects that through the lens body and the five-partition defocus functional area, the requirements of vision correction, defocus area and defocus amount required by different eye view places are met, so that the stable peripheral defocus of a central view field is solved, and an effective different view field vision management scheme is provided.

Description

Technical Field

[0001] The utility model relates to a spectacle lens, in particular to a five-zone peripheral defocus lens based on the characteristics of the visual field of the eye, and belongs to the technical field of spectacle lenses. Background Art

[0002] Currently available peripheral defocus lenses are primarily designed to enhance vision and provide peripheral defocus stimulation, but they fail to account for the asymmetry of the visual field. Adolescents experience a constantly changing visual field when doing homework in class. While looking at the blackboard, they use the upper area of the lens, while doing homework uses the lower area of the lens toward the nose. When doing homework or reading, the field of view is concentrated in the upper and lower nasal areas of the lens. This diversity of eye use leads to asymmetric visual fields. The human eye requires different peripheral defocus levels in different visual fields. For example, a small amount of defocus is required for distant vision, while a large amount is required for near vision. The upper and lower portions of the near vision area should also have different defocus levels, while the central area should provide a stable defocus. However, existing peripheral defocus lenses primarily divide the visual field into three or four sections, all centered around the center of the lens. However, the central area is common to all visual fields and its primary function is stability, providing clear imaging and partially stable peripheral defocus to enhance the eye's adaptability. The remaining sections within the central area provide corrected vision and peripheral defocus for varying visual fields. To achieve the above functions, peripheral defocus lenses with eye-based visual field characteristics and center stability still need to be designed. Summary of the Invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a five-zone peripheral defocus lens based on the characteristics of the visual field, so as to solve the problem of stable peripheral defocus of the central field of view and different defocus ranges and defocus amounts according to the different visual fields of the eye, and to provide effective vision management solutions for different fields of view.

[0004] Technical solution: A five-zone peripheral defocus lens based on the characteristics of the eye's visual field, including a lens body and a defocus functional area processed on the lens body, wherein the defocus functional area is composed of a microlens array; the defocus functional area includes a central common defocus area, a temporal area, a near use area, a nasal area and a hyperopia area; the central common defocus area is located in the outer circle of the area without a microlens structure in the center of the lens; the hyperopia area is located above the central common defocus area, the nasal area is located in the area close to the side of the nose, the near use area is below the central common defocus area, and the temporal area is the remaining area; the absolute value relationship of the defocus amount of the microlens array in the five functional areas satisfies: near use area ≥ nasal area ≥ central common defocus area ≥ hyperopia area ≥ temporal area.

[0005] Preferably, the effective diameter range of the area without microlens structure in the center of the central shared defocus zone is 5-12 mm, and the central shared defocus zone is composed of 2-5 circles of microlens structures; the absolute value of the additional refractive power of the microlens structure in the central shared defocus zone ranges from 3.0D to 5.5D, and the spacing between individual microlenses is 0.01mm to 1mm.

[0006] Preferably, the angle range of the range from B to C below the horizontal line of the near zone is 90°~130°; the near zone is composed of 6~14 fan-shaped microlens structures, the absolute value of the additional refractive power of the microlens structure ranges from 3.2D to 7.0D, and the spacing between individual microlenses is 0.01mm~1mm.

[0007] Preferably, the nasal area lens is close to the nasal direction C to D, and its angle range is 60°~90°; the nasal area is composed of 6~14 fan-shaped distributed microlens structures, the absolute value of the additional refractive power of the microlens structure ranges from 3.0D to 6.5D, and the interval between individual microlenses is 0.01mm~1mm.

[0008] Preferably, the angle range of the range from A to D above the horizontal line of the hyperopia zone lens is 100°~150°; the hyperopia zone is composed of 6~14 fan-shaped microlens structures, the absolute value of the additional refractive power of the microlens structure ranges from 2.5D to 5.5D, and the spacing between individual microlenses is 0.01mm~1mm.

[0009] Preferably, the temporal area lens is close to the range from temporal area A to B, and the angle range is 50°~90°. The temporal area is composed of 6~14 fan-shaped microlens structures, and the absolute value of the additional refractive power of the microlens structure ranges from 2.0D to 4.5D. The interval between individual microlenses is 0.01mm~1mm.

[0010] Preferably, the effective diameter of a single microlens structure in the microlens array ranges from 0.6 mm to 1.8 mm, and the single microlens structure is an annular, discretely distributed microlens, a cylindrical lens, or the like.

[0011] Preferably, the effective diameter of a single microlens structure in the five-functional-area microlens array satisfies the following: near vision area ≤ nasal area ≤ central shared defocus area ≤ hyperopia area ≤ temporal area.

[0012] Preferably, the diopter range of the lens body is -20D to +20D.

[0013] Beneficial effects: The present invention meets the vision correction, defocus area and defocus amount required for different fields of vision through the lens body and the five-zone defocus functional area, so as to solve the problems of stable peripheral defocus in the central field of vision and different defocus ranges and defocus amounts according to the field of vision, and provide effective vision management solutions for different fields of vision. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the structural partitioning of the utility model. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0018] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0019] like Figure 1As shown, a five-zone peripheral defocus lens based on the characteristics of the visual field of the eye includes a lens body and a defocus functional area processed on the lens body, wherein the defocus functional area is composed of a microlens array; the defocus functional area includes a central common defocus area 1, a temporal area 2, a near use area 3, a nasal area 4 and a hyperopia area 5; the central common defocus area 1 is located in the outer circle of the area without a microlens structure in the center of the lens; the hyperopia area 5 is located above the central common defocus area 1, the nasal area 4 is located in the area close to the side of the nose, the near use area 3 is below the central common defocus area 1, and the temporal area 2 is the remaining area; the absolute value relationship of the defocus amount of the microlens array of the five functional areas satisfies: near use area 3 ≥ nasal area 4 ≥ central common defocus area 1 ≥ hyperopia area 5 ≥ temporal area 2.

[0020] The effective diameter range of the area without microlens structure in the center of the central shared defocus zone 1 is 5~12mm, and the central shared defocus zone 1 is composed of 2~5 circles of microlens structures; the absolute value of the additional refractive power of the microlens structure of the central shared defocus zone 1 ranges from 3.0D to 5.5D, and the interval between individual microlenses is 0.01mm~1mm.

[0021] The angle range of the area from B to C below the horizontal line of the near zone 3 is 90° to 130°; the near zone 3 is composed of 6 to 14 fan-shaped microlens structures, the absolute value of the additional refractive power of the microlens structure ranges from 3.2D to 7.0D, and the spacing between individual microlenses is 0.01mm to 1mm.

[0022] The lens of the nasal area 4 is close to the range of the nasal direction C to D, and its angle range is 60°~90°; the nasal area 4 is composed of 6~14 fan-shaped distributed microlens structures, the absolute value of the additional refractive power of the microlens structure ranges from 3.0D to 6.5D, and the interval between individual microlenses is 0.01mm~1mm.

[0023] The range from A to D above the horizontal line of the lens in the hyperopia zone 5 has an angle range of 100° to 150°; the hyperopia zone 5 is composed of 6 to 14 fan-shaped microlens structures, the absolute value of the additional refractive power of the microlens structure ranges from 2.5D to 5.5D, and the spacing between individual microlenses is 0.01mm to 1mm.

[0024] The lens of the temporal area 2 is close to the range from temporal area A to B, and the angle range is 50°~90°. The temporal area 2 is composed of 6~14 fan-shaped distributed microlens structures. The absolute value of the additional refractive power of the microlens structure ranges from 2.0D to 4.5D, and the interval between individual microlenses is 0.01mm~1mm.

[0025] The effective diameter range of a single microlens structure in the microlens array is 0.6 mm to 1.8 mm, and the effective diameter of a single microlens structure in the five functional area microlens arrays satisfies: near vision zone 3 ≤ nasal zone 4 ≤ central shared defocus zone 1 ≤ hyperopia zone 5 ≤ temporal zone 2.

[0026] The diopter range of the lens body is -20D to +20D. Example

[0027] like Figure 1 , a five-zone peripheral defocus lens based on the characteristics of the visual field of the eye, including a lens body and a defocus functional area processed on the lens body, wherein the defocus functional area is divided into five areas: central common defocus zone 1, temporal zone 2, near zone 3, nasal zone 4 and hyperopia zone 5. The effective diameter of the central common defocus zone 1 without microlens structure is 9mm. The central common defocus zone 1 is composed of 3 circles of microlenses with an effective diameter of 1.0mm. The absolute value of its additional refractive power is 4.0D, and the interval between individual microlenses is 0.2mm. The range from B to C below the horizontal line of the near zone 3 lens has an angle of 105° and is composed of 10 circles of discretely distributed microlenses. The absolute value of the additional refractive power of the microlenses is 4.5D, the interval between individual microlenses is 0.1mm, and the effective diameter of the microlenses is 0.9mm. The nasal zone 4 lens is close to the nose from C to D, with an included angle of 75°. It consists of 10 circles of discretely distributed microlenses. The absolute value of the additional refractive power of the microlenses is 4.3D, the spacing between individual microlenses is 0.1mm, and the effective diameter of the microlenses is 1mm. The hyperopia zone 5 is above the horizontal line from A to D, with an included angle of 120°. It consists of 10 circles of discretely distributed microlenses. The absolute value of the additional refractive power of the microlenses is 3.0D, the spacing between individual microlenses is 0.15mm, and the effective diameter of the microlenses is 1.1mm. The temporal zone 2 lens is close to the temporal zone from A to B, with an included angle of 60°. It consists of 10 circles of discretely distributed microlenses. The absolute value of the additional refractive power of the microlenses is 2.5D, the spacing between individual microlenses is 0.15mm, and the effective diameter of the microlenses is 1.2mm.

[0028] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0029] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A five-zone peripheral defocus lens designed based on visual field characteristics, comprising a lens body and a defocus functional area machined on the lens body, wherein the defocus functional area is formed by a microlens array; characterized in that: The defocus functional areas include a central shared defocus area (1), a temporal area (2), a near use area (3), a nasal area (4) and a hyperopia area (5); the central shared defocus area (1) is located in the outer circle of the area without a microlens structure in the center of the lens; the hyperopia area (5) is located above the central shared defocus area (1), the nasal area (4) is located in the area close to the side of the nose, the near use area (3) is below the central shared defocus area (1), and the temporal area (2) is the remaining area; the absolute value relationship of the defocus amount of the microlens array of the five functional areas satisfies: the near use area (3) ≥ the nasal area (4) ≥ the central shared defocus area (1) ≥ the hyperopia area (5) ≥ the temporal area (2).

2. The five-zone peripheral defocus lens according to claim 1, wherein: The effective diameter range of the central shared defocusing area (1) without a microlens structure is 5 to 12 mm, and the central shared defocusing area (1) is composed of 2 to 5 circles of microlens structures; the absolute value range of the additional diopter of the microlens structure of the central shared defocusing area (1) is 3.0D to 5.5D, and the interval between individual microlenses is 0.01mm to 1mm.

3. The five-zone peripheral defocus lens according to claim 1, wherein: The range from B to C below the horizontal line of the near vision zone (3) has an angle range of 90° to 130°; the near vision zone (3) is composed of 6 to 14 fan-shaped micro-lens structures, the absolute value of the additional diopter of the micro-lens structure ranges from 3.2D to 7.0D, and the interval between individual micro-lenses is 0.01mm to 1mm.

4. The five-zone peripheral defocus lens according to claim 1, wherein: The nose side area (4) lens is close to the nose side direction C to D, and its angle range is 60°~90°; the nose side area (4) is composed of 6~14 fan-shaped distributed micro lens structures, the additional diopter absolute value range of the micro lens structure is 3.0D~6.5D, and the interval between individual micro lenses is 0.01mm~1mm.

5. The five-zone peripheral defocus lens according to claim 1, wherein: The hyperopia zone (5) is a range from A to D above the horizontal line of the lens, and its angle range is 100° to 150°; the hyperopia zone (5) is composed of 6 to 14 fan-shaped distributed microlens structures, the absolute value of the additional diopter of the microlens structure ranges from 2.5D to 5.5D, and the interval between individual microlenses is 0.01mm to 1mm.

6. The five-zone peripheral defocus lens according to claim 1, wherein: The lens of the temporal region (2) is close to the range from temporal region A to temporal region B, and the angle range is 50° to 90°. The temporal region (2) is composed of 6 to 14 microlens structures distributed in a fan shape, and the absolute value of the additional diopter of the microlens structure ranges from 2.0D to 4.5D, and the interval between individual microlenses is 0.01mm to 1mm.

7. The five-zone peripheral defocus lens according to claim 1, wherein: The effective diameter of a single microlens structure in the microlens array ranges from 0.6 mm to 1.8 mm.

8. The five-zone peripheral defocus lens according to claim 7, wherein: The effective diameter of a single microlens structure in the five functional area microlens array satisfies the following conditions: near vision area (3) ≤ nasal area (4) ≤ central shared defocus area (1) ≤ hyperopia area (5) ≤ temporal area (2).

9. The five-zone peripheral defocus lens according to claim 1, wherein: The diopter range of the lens body is -20D to +20D.

Images