An integrated off-axis combination lens with peripheral off-axis zones

Abstract

This utility model discloses an integrated defocusing lens with a peripheral defocusing zone, specifically relating to the field of lens technology. It includes a base plate on which a focus adjustment component is mounted. The focus adjustment component includes a housing located at the top of the base plate, with a first lens disposed in the center of the housing. An outer wire tube is rotatably connected to the bottom of the base plate. This utility model, through the peripheral defocusing curved surface design of the first lens, directly focuses peripheral light in front of the retina rather than behind it, eliminating peripheral hyperopic defocus signals, fundamentally blocking the cause of abnormal axial elongation, effectively inhibiting the progression of myopia, and solving the core defects of traditional lenses.

Description

Technical Field

[0001] This utility model relates to the field of lens technology, and more specifically, to an integrated defocusing combination lens with a peripheral defocusing zone. Background Technology

[0002] As the core optical element for vision correction, lenses function by refracting light to precisely project an image of an object onto the retina, thereby improving vision problems such as myopia and hyperopia. Currently, traditional lens designs can only achieve precise focusing of central light rays—that is, ensuring that light rays from the center of an object fall accurately on the retina. However, traditional lenses cannot properly control light rays from the peripheral areas of an object, causing peripheral light rays to focus behind the retina, resulting in a phenomenon known as "peripheral hyperopic defocus."

[0003] This "peripheral hyperopic defocus" sends incorrect growth signals to the eye's visual system, stimulating the eye axis to continuously elongate. Abnormal axial length increase is the core cause of persistent myopia progression. Long-term use of traditional lenses leads to a gradual increase in myopia year by year, failing to address the root cause of myopia progression. Furthermore, while some existing lenses attempt to solve the defocus problem, they often suffer from structural defects (such as multi-lens assembly) and inconvenient focusing adjustment (low adjustment precision or complex operation). These limitations make it difficult to guarantee the synergistic effect of "central focus + peripheral defocus," and they cannot adapt to the dynamic visual needs of different users, resulting in significant limitations in both user experience and corrective effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an integrated defocusing combination lens with a peripheral defocusing zone, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: an integrated defocusing combination lens with a peripheral defocusing area, including a pad, on which a focus adjustment component is provided; The focusing adjustment assembly includes a housing disposed on the top of the pad, a first lens disposed in the middle of the housing, an outer wire spool rotatably connected to the bottom of the pad, an adjustable connecting cylinder disposed at the bottom of the outer wire spool, and a second lens disposed in the middle of the connecting cylinder. The top of the connecting cylinder is provided with a wire groove, and the outer wire cylinder extends into the wire groove and is threadedly connected to the wire groove.

[0006] Optionally, in one possible implementation, the outer side of the connecting cylinder is hinged with a plurality of first hinge rods, and each of the first hinge rods is hinged with a second hinge rod. The top ends of the plurality of first hinge rods are respectively hinged with second hinge rods, and a top block is provided on one side of each of the second hinge rods. The top ends of the plurality of second hinge rods extend to the bottom of the pad and are hinged to the pad. Optionally, in one possible implementation, the bottom of the inner wall of the pad is provided with a plurality of through holes, and each of the through holes is located directly above a corresponding top block. A stop rod is provided in each of the plurality of through holes, and the bottom end of each of the stop rods abuts against the top of the corresponding top block. The top end of the stop rod is located at the bottom of the first lens, so that after the second hinge rod is deflected, the top block abuts against the stop rod, causing the first lens to move. A plurality of guide rods are provided on the inner wall of the housing, and the first lens is slidably connected to the guide rods. The technical effects and advantages of this utility model are as follows: By using the peripheral defocus curved surface design of the first lens, peripheral light is directly focused in front of the retina rather than behind it, eliminating peripheral hyperopic defocus signals, blocking the cause of abnormal axial elongation from the root, effectively inhibiting the increase of myopia, and solving the core defects of traditional lenses. Relying on the threaded drive of the outer threaded tube and connecting tube, and the force transmission structure of the hinge rod and the stop rod, the distance between the first lens and the second lens can be precisely adjusted to achieve flexible adaptation of the focusing state, such as adapting to different myopia degrees or eye use scenarios, solving the problems of inconvenient adjustment and poor adaptability of existing defocus lenses; The focus adjustment component, dual lenses, and transmission structure are integrated based on a pad, avoiding the risk of loosening when assembling multiple lenses separately. With the help of the guide rod to limit the displacement of the first lens, the position of the optical element is kept stable, and the synergistic effect of central focus and peripheral defocus is always maintained, solving the problem of the dispersion of existing defocus lens structures and unstable optical effects. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0008] Figure 1 This is a front view of the overall structure of this utility model.

[0009] Figure 2 This is a side view of the overall structure of this utility model.

[0010] Figure 3 This is a schematic diagram of the first lens, pad, shell, abutment rod, and guide rod of this utility model.

[0011] Figure 4 This is a schematic diagram of the outer threaded tube, connecting tube, second lens, first hinge rod, second hinge rod, and top block of this utility model.

[0012] The attached figures are labeled as follows: 1. Pad; 2. Housing; 3. First lens; 4. Outer threaded tube; 5. Connecting tube; 6. Second lens; 7. Threaded groove; 8. First hinge rod; 9. Second hinge rod; 10. Top block; 11. Through hole; 12. Abutment rod; 13. Guide rod. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] This embodiment aims to specifically realize the structural assembly and functional operation of an integrated defocus combination lens with a peripheral defocus zone. By clarifying the connection relationship, action logic and corresponding relationship of each component and the attached diagram, it solves the problem of myopia progression caused by peripheral hyperopic defocus of traditional lenses.

[0015] In this embodiment, the lens is based on the pad 1 as the basic support, on which the focusing adjustment component and auxiliary transmission structure are integrated. The assembly relationship and position of each component are as follows: The pad 1 is made of lightweight alloy material, providing stable support for the entire lens. Its top is used to install the fixed part of the focus adjustment component, and its bottom is used to connect the adjustable part.

[0016] The housing 2 is fixed to the top of the pad 1 and is cylindrical with a smooth inner wall. Its axis coincides with the axis of the pad 1. The first lens 3 is embedded in the middle of the housing 2. The first lens 3 is a peripheral defocusing resin lens. The central area is used to achieve retinal central focusing, and the peripheral area is designed with a special optical curved surface to focus peripheral light in front of the retina, thereby reducing defocus signals from the source.

[0017] To ensure the stable displacement of the first lens 3, several guide rods 13 are provided inside the housing 2 to restrict the first lens 3 to move only up and down along the axial direction, thus avoiding optical deviation caused by displacement.

[0018] The outer threaded cylinder 4 is rotatably connected to the bottom center of the pad plate 1 via a bearing. The outer threaded cylinder 4 is a hollow cylinder with anti-slip texture on the outside, which makes it easy to rotate manually.

[0019] The connecting cylinder 5 is located below the outer wire cylinder 4. A wire groove 7 is opened on the inner side of its top end. The inner wall of the wire groove 7 is provided with an internal thread. The lower end of the outer wire cylinder 4 extends into the wire groove 7, and the external thread of the outer wire cylinder 4 meshes with the internal thread of the wire groove 7 to form a threaded transmission. A second lens 6 is embedded in the middle of the connecting cylinder 5. The second lens 6 is a plano-convex lens, which works with the first lens 3 to form a combined optical effect of "central focusing and peripheral defocus".

[0020] Several first hinge rods 8 are evenly distributed on the outer side of the connecting cylinder 5. The lower end of each first hinge rod 8 is hinged to the connecting cylinder 5 by a pin, and the upper end is hinged to the lower end of the second hinge rod 9 by a pin. The upper end of each second hinge rod 9 is hinged to the bottom of the pad plate 1 by a pin, and a top block 10 is integrally formed on the outer side of the middle part of the second hinge rod 9. The top block 10 is arc-shaped to avoid scratching the abutment rod 12.

[0021] At the bottom of the inner wall of the pad 1, through holes 11 are respectively provided at the position directly above each top block 10 to ensure that the force of the top block 10 can be transmitted vertically to the abutment 12.

[0022] The abutment rod 12 is made of optical grade transparent resin and is inserted into each through hole 11. The lower end of the abutment rod 12 abuts against the top of the top block 10, and the upper end extends to the bottom of the first lens 3 and is bonded and fixed to the bottom of the first lens 3, so as to realize the force transmission from the top block 10 to the first lens 3.

[0023] The specific working principle is as follows: manually rotate the outer threaded drum 4 at the bottom of the pad 1; since the outer threaded drum 4 and the pad 1 are rotatably connected by bearings, the outer threaded drum only rotates circumferentially and does not produce axial displacement.

[0024] When the threaded drive external threaded drum 4 rotates, its outer thread engages with the inner thread of the thread groove 7 of the connecting drum 5, converting the circumferential rotation into the axial movement of the connecting drum 5. When the external threaded drum 4 rotates clockwise, the connecting drum 5 moves upward; when it rotates counterclockwise, it moves downward.

[0025] When the force transmission connecting cylinder 5 moves up and down, it drives the first hinge rod 8, which is hinged to its outer side, to move synchronously. When the first hinge rod 8 moves, it pushes the second hinge rod 9, which is hinged to it, to deflect around its top. When the connecting cylinder 5 moves upward, the second hinge rod 9 deflects to the outside, and the top block 10 is lifted upward. When the connecting cylinder 5 moves downward, the second hinge rod 9 deflects to the inside, and the top block 10 falls back downward.

[0026] When the second hinge rod 9 deflects during focus adjustment, the lower end of the top block 10 and the abutment rod 12 continuously abut against each other. When the top block 10 is lifted upwards, it pushes the abutment rod 12 upwards along the through hole 11, thereby pushing the first lens 3 upwards along the guide rod 13. When the top block 10 falls downwards, the first lens 3 moves downwards under its own gravity. By adjusting the distance between the first lens 3 and the second lens 6, precise control of the focusing state is achieved.

[0027] Regardless of how the distance between the first lens 3 and the second lens 6 is adjusted, the peripheral defocus surface of the first lens 3 can always focus peripheral light in front of the retina, while the second lens 6 helps to optimize the focusing accuracy of the central light. The two form an "integrated" synergistic effect, avoiding the defects of traditional lenses that focus in the center and defocus at the periphery, thereby inhibiting the problem of axial elongation.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An integrated off-axis combination lens with peripheral off-axis zones, comprising a base plate (1), characterized in that: The pad (1) is provided with a focusing adjustment component; The focusing adjustment assembly includes a housing (2) disposed on the top of the pad (1), a first lens (3) disposed in the middle of the housing (2), an outer wire spool (4) rotatably connected to the bottom of the pad (1), a position-adjustable connecting tube (5) disposed at the bottom of the outer wire spool (4), and a second lens (6) disposed in the middle of the connecting tube (5). The top end of the connecting cylinder (5) is provided with a wire groove (7), and the outer wire cylinder (4) extends into the wire groove (7) and is threadedly connected to the wire groove (7).

2. The one-piece multifocal lens with peripheral zones of different powers according to claim 1, wherein: The outer side of the connecting cylinder (5) is hinged with a plurality of first hinge rods (8), and each of the first hinge rods (8) is hinged with a second hinge rod (9).

3. The integrated defocusing lens with a peripheral defocusing zone according to claim 2, characterized in that: The top ends of the plurality of first hinge rods (8) are respectively hinged to second hinge rods (9), and each second hinge rod (9) has a top block (10) on one side.

4. The integrated defocusing lens with a peripheral defocusing zone according to claim 3, characterized in that: The top ends of the plurality of second hinge rods (9) extend to the bottom of the pad (1) and are hinged to the pad (1).

5. The integrated defocusing lens with a peripheral defocusing zone according to claim 3, characterized in that: The bottom of the inner wall of the pad (1) is provided with a number of through holes (11), and each of the through holes (11) is located directly above the corresponding top block (10).

6. The integrated defocusing lens with a peripheral defocusing zone according to claim 5, characterized in that: A stop rod (12) is provided in each of the multiple through holes (11), and the bottom end of each stop rod (12) abuts against the top of the corresponding top block (10). The top end of the stop rod (12) is located at the bottom of the first lens (3), so that after the second hinge rod (9) deflects, the top block (10) abuts against the stop rod (12) and the first lens (3) is displaced.

7. The integrated defocusing lens with a peripheral defocusing zone according to claim 1, characterized in that: The inner wall of the housing (2) is provided with a plurality of guide rods (13), and the first lens (3) is slidably connected to the guide rods (13).

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