Lens capable of being spliced

Abstract

The utility model relates to an optical lens, in particular to a splicable lens, which is used for solving the problems of high mold cost, easiness in damage and poor flexibility in manufacturing of a long arc-shaped light band. The lens comprises an arc-shaped bent lens body (10), a light inlet face (11) is arranged at the bottom of the lens body to receive light of a light source, a reflecting face (12) is arranged on an inclined face to reflect the light to the side face, and a light outlet face (13) is arranged on the side face to output the light. The first end side face (14) and the second end side face (15) at the two ends of the lens body are matched in shape and can be directly spliced end to end. In a preferable scheme, a splicing piece (20) is additionally arranged, the two splicing side faces (21) of the splicing piece (20) are matched with the end side faces (14 and 15) in shape, and the splicing piece (20) is matched with different splicing radians through included angle design. Light vertically enters through the light inlet face (11), is totally internally reflected by the reflecting face (12) and then vertically exits from the light outlet face (13), and 90-degree steering is achieved. Through the modular splicing design, the die cost and the production risk are remarkably reduced, and the length and the curvature of the light band are flexibly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of optical lenses, and in particular to a splicable lens. Background Technology

[0002] With the development of modern industrial design, especially in the field of indoor ceiling lighting, there is an increasing demand for long-distance linear light sources with specific curved shapes.

[0003] Currently, the main method for achieving this type of long, curved lighting is a one-piece molding solution: a single injection molding or extrusion process is used to manufacture a complete long, curved lens or light guide plate. This solution has significant drawbacks: firstly, it requires the manufacture of huge and complex molds, resulting in extremely high mold-making costs; secondly, long and delicate lenses are easily damaged or deformed during production, demolding, inspection, packaging, and transportation, leading to low yield rates; and finally, if the design length or curvature needs to be changed, the entire expensive mold set must be discarded and remade, lacking flexibility.

[0004] Therefore, there is an urgent need for a technical solution that can reduce manufacturing costs and risks while flexibly constructing arc-shaped light strips of different lengths. Utility Model Content

[0005] In view of the above situation, it is necessary to provide a splicable lens that solves at least one of the above problems, comprising:

[0006] Lens body (10), the lens body (10) is curved in an arc shape;

[0007] The lens body (10) is provided with:

[0008] The light-receiving surface (11) at its bottom is used to receive the incident light from the light source;

[0009] A reflective surface (12) is provided on its inclined surface, the reflective surface (12) being used to reflect light rays incident from the light-incoming surface (11) to the side surface of the lens body (10); and

[0010] The light-emitting surface (13) provided on the side of the lens body (10) is used to output the light reflected by the reflecting surface (12);

[0011] The lens body (10) has a first end side (14) and a second end side (15), and the shapes of the first end side (14) and the second end side (15) are configured to allow the two lens bodies (10) to be spliced ​​together end to end.

[0012] Preferably, it further includes:

[0013] The splicing component (20) has two splicing sides (21) that match the shape of the first end side (14) and the second end side (15) of the lens body (10), wherein there is an included angle between the splicing sides (21).

[0014] Preferably, the normal direction of the light-inlet surface (11) is perpendicular to the normal direction of the light-outlet surface (13). Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the splicable lens according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of two lens bodies spliced ​​together according to an embodiment of the present invention.

[0017] Figure 3 This is an exploded view of two lens bodies spliced ​​together according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of multiple lens bodies spliced ​​together according to an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the light path passing through the lens body according to an embodiment of the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please refer to the embodiments of this utility model. Figure 1 , Figure 2 , Figure 3 Figure 4 as well as Figure 5 This embodiment provides a splicable lens.

[0024] The splicable lens comprises a core component—the lens body (10). The lens body (10) is typically made of a highly transparent optical material and manufactured using an injection molding process. The overall shape of the lens body (10) is a pre-designed curved shape to accommodate different curved surface installation requirements.

[0025] Three key optical surfaces are integrated on the lens body (10):

[0026] Light-receiving surface (11): Located at the bottom of the lens body (10). This surface is usually designed to be flat or have a slight curvature. Its main function is to efficiently receive light emitted from an external light source (not shown, usually an LED light strip) and guide it into the lens body (10).

[0027] Reflecting surface (12): Located on an inclined surface inside the lens body (10). The angle of the reflecting surface (12) is precisely optically designed. When light L enters from the light-incident surface (11), it propagates to the reflecting surface (12) and is reflected by the surface, thereby changing its propagation direction. In a preferred design, the reflecting surface (12) is a total internal reflection (TIR) ​​surface. This means that its tilt angle matches the refractive index of the lens material, so that light with an incident angle greater than the critical angle can be 100% reflected without the need for surface coating, thereby improving reflection efficiency, reducing costs, and enhancing long-term reliability.

[0028] Light-emitting surface (13): Located on the side of the lens body (10) (e.g., the inner or outer side of an arc). Light L reflected by the reflecting surface (12) is projected onto the light-emitting surface (13) and emitted from there, forming the final illumination effect. The light-emitting surface (13) can be smooth or designed as needed to have a surface with microtexture or prism structure to achieve light softening, diffusion, or specific angle distribution.

[0029] like Figure 1 and Figure 5 The illustrated light path clearly demonstrates the complete process of light entering from the light-inlet surface (11), being redirected by the reflective surface (12), and finally exiting from the light-outlet surface (13). In this embodiment, the normal direction of the light-inlet surface (11) and the normal direction of the light-outlet surface (13) are designed to be perpendicular to each other. This achieves an efficient 90-degree light redirection function, allowing the light source flat against the bottom to emit uniform light from the side, making it an extremely practical structural layout.

[0030] Please see Figure 2 and Figure 3 This diagram illustrates a specific implementation of one of the splicing schemes.

[0031] Based on Embodiment 1, this embodiment adds an optional auxiliary component—the splicing component (20). This splicing component (20) is an independent small component, and its material can be the same as that of the lens body (10), or it can be other materials with sufficient strength and stability.

[0032] The splicing component (20) has two splicing sides (21) whose shape, size and contour are perfectly matched with the first end side (14) and the second end side (15) of the lens body (10).

[0033] During assembly, a splicing piece (20) is placed between two lens bodies (10) to be connected. The first end side (14) of one lens body is attached to one splicing side (21) of the splicing piece, and the second end side (15) of the other lens body is attached to the other splicing side (21) of the splicing piece. The bonding is achieved by applying adhesive to the contact surfaces.

[0034] The advantages of using splicing parts (20) are: firstly, they can provide stronger mechanical connection strength and rigidity, making the spliced ​​long light strip more robust; secondly, they can play an auxiliary positioning role, ensuring the alignment accuracy of the two lens bodies during the bonding and curing process, and simplifying the assembly process.

[0035] Furthermore, when a lens with a large splicing range is required, a splicing piece (20) with a large angle between the two splicing sides (21) can be selected. Similarly, when a lens with a small splicing range is required, a splicing piece (20) with a small angle between the two splicing sides (21) can be selected.

[0036] The above description is merely a preferred embodiment of this solution and is not intended to limit the solution. Various modifications and variations can be made to this solution by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this solution should be included within the scope of protection of this solution.

Claims

1. A splicable lens, characterized in that, include: Lens body (10), the lens body (10) is curved in an arc shape; The lens body (10) is provided with: The light-receiving surface (11) at its bottom is used to receive the incident light from the light source; A reflective surface (12) is provided on its inclined surface, the reflective surface (12) being used to reflect light rays incident from the light-incoming surface (11) to the side surface of the lens body (10); and The light-emitting surface (13) provided on the side of the lens body (10) is used to output the light reflected by the reflecting surface (12); The lens body (10) has a first end side (14) and a second end side (15), and the shapes of the first end side (14) and the second end side (15) are configured to allow the two lens bodies (10) to be spliced ​​together end to end.

2. The splicable lens according to claim 1, characterized in that, Also includes: The splicing component (20) has two splicing sides (21) that match the shape of the first end side (14) and the second end side (15) of the lens body (10), wherein there is an included angle between the splicing sides (21).

3. The splicable lens according to claim 1 or 2, characterized in that, The normal direction of the light-inlet surface (11) is perpendicular to the normal direction of the light-outlet surface (13).

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