Optical fiber flexible neon light bar
By designing a flexible optical fiber core and a light-transmitting cladding layer, the bending performance and size issues of LED neon light strips have been solved, enabling arbitrary bending and miniaturized uniform light emission of the light strips.
Patent Information
- Application Number
- CN202522487587.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-24
AI Technical Summary
Existing LED neon light strips have limited bending performance, are prone to breakage, and are too large in size, making it difficult to achieve miniaturization and uniform light emission.
It employs a flexible optical fiber core and a transparent flexible cladding layer. The optical fiber core emits light from the side, and an external laser provides the light source. Photoluminescent and diffusing particles are distributed within the flexible cladding layer to achieve uniform light transmission.
It enables light strips to bend in any direction without damage, reduces size while achieving uniform light emission, and expands application scenarios.
Smart Images
Figure CN224680589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED lighting technology, and specifically to a fiber optic flexible neon light strip. Background Technology
[0002] Existing LED neon light strips typically use LED chips soldered onto flexible printed circuit boards (FPCs) or flip-chip soldered LEDs as the light source, followed by extrusion coating with silicone. To achieve a continuous and uniform light emission effect, diffusing agents are usually added to the LED silicone to improve the light spot, or light-blocking color masterbatches are added to change the light emission direction. However, existing LED neon light strip technologies have the following significant drawbacks:
[0003] Limited bending performance: Because the internal core relies on a flat FPC board to transmit power, the light strip can only bend laterally along the normal direction of the FPC board. If a large radius bend, or longitudinal bending or twisting is performed, it is very easy to cause the FPC board to break, open circuit, and result in functional failure.
[0004] Large size: Due to the small light-emitting angle and large size of the LED beads themselves, in order to achieve uniform light emission, not only is it necessary to add a sufficient amount of diffusing agent, but also to increase the outer size to increase the light diffusion distance. This results in the cross-sectional size of the finished light strip being too large, which is not conducive to miniaturization applications. Utility Model Content
[0005] The purpose of this invention is to provide a flexible fiber optic neon light strip to solve the technical problems of existing LED light strips, such as inability to bend arbitrarily, easy breakage, and excessive size.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible fiber optic neon light strip, comprising:
[0007] The flexible optical fiber core is a long cylindrical shape used to conduct light along its length and emit light from its sidewalls.
[0008] A flexible functional cladding layer is coaxially clad on the outer peripheral surface of the flexible optical fiber core;
[0009] The flexible functional coating layer is a light-transmitting flexible material layer, and photoluminescent particles and light-diffusing particles are dispersedly distributed within the flexible functional coating layer.
[0010] Furthermore, the flexible optical fiber core is a bulk-side light-emitting polymer optical fiber.
[0011] Furthermore, the flexible functional cladding layer is a silicone layer integrally extruded with the flexible optical fiber core.
[0012] Furthermore, light-blocking masterbatch particles are also distributed within the flexible functional coating layer, and the light-blocking masterbatch particles are configured to change the light emission direction or focus the light.
[0013] Furthermore, at least one end of the fiber optic flexible neon light strip is provided with an optical coupling connector, which is configured to connect to an external laser source and guide the laser into the end face of the flexible fiber core.
[0014] Furthermore, the optical coupling connector includes a ferrule for fixing the end of the flexible optical fiber core and fasteners disposed on the outside of the ferrule.
[0015] The beneficial effects of this utility model are as follows:
[0016] Achieving arbitrary bending: This utility model abandons the traditional FPC board structure and uses a cylindrical flexible optical fiber core as the light-emitting body. Due to its cylindrical symmetrical structure, the light strip can be bent in any direction (horizontal, longitudinal, and torsional) without damage, greatly expanding the application scenarios.
[0017] Compact size and uniform light emission: An external laser provides the light source, which is transmitted through optical fiber. The light is uniformly emitted by photoluminescent particles (such as phosphors) in a flexible functional cladding layer outside the optical fiber, eliminating the need to increase the thickness to block the light spot of the LED beads, effectively reducing the size of the light strip while achieving excellent neon effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of the fiber optic flexible neon light strip of this utility model.
[0019] Figure 2 This is a schematic diagram of the overall structure of the fiber optic flexible neon light strip of this utility model when connected to an external light source.
[0020] Explanation of reference numerals in the attached figures: 10-Flexible fiber core; 20-Flexible functional cladding layer; 21-Photoluminescent particles; 22-Light diffusing particles; 23-Light-blocking masterbatch particles; 30-Optical coupling connector; 40-External laser source. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the digital-to-analog conversion circuit and conversion method of this 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 for explaining this utility model and are not intended to limit this utility model.
[0022] 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.
[0023] 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 a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. For example... Figure 1 and Figure 2As shown, this embodiment provides a flexible fiber optic neon light strip, the core structure of which includes a flexible fiber optic core 10 and a flexible functional cladding layer 20 wrapped around it. The flexible fiber optic core 10 is the light-emitting body of this light strip, and it is long and cylindrical. Unlike traditional communication optical fibers that emit light only at the ends, the flexible fiber optic core 10 in this embodiment preferably uses a full-body side-emitting polymer fiber (POF). It can uniformly scatter light introduced from one end from the sidewall during transmission, forming a bright line. Because its material is flexible and cylindrical, it can be bent in any direction without breaking. The flexible functional cladding layer 20 is coaxially wrapped around the outer peripheral surface of the flexible fiber optic core 10. Preferably, it is made by directly extruding modified silicone onto the surface of the optical fiber using an integrated extrusion mold. This flexible functional cladding layer 20 not only protects the optical fiber but is also key to achieving the "neon" effect. Various functional particles are dispersed within the substrate (such as high-transmittance silicone) of the flexible functional cladding layer 20:
[0026] Photoluminescent particles 21: Specifically, they can be various LED phosphors (such as red, green, yellow phosphors, etc.). When externally introduced excitation light (such as blue laser) is emitted from the side of the flexible optical fiber core 10 and hits these particles, they will be excited to emit light of a predetermined color (red, green, blue, white, etc.).
[0027] Light diffusing particles 22: These are also called diffusing agent microparticles. Their function is to refract and scatter light multiple times, making the light emission more uniform and soft, eliminating the graininess, and achieving a neon effect.
[0028] Light-blocking masterbatch particles 23: Optional addition. Used to block light from specific directions to change the direction of light emission, or to act as a light-focusing agent to increase brightness from a specific viewing angle. For example... Figure 2 As shown, to illuminate the light strip, at least one end of the light strip needs to be equipped with an optical coupling connector 30. This connector is used to connect to an external laser source 40 (such as a laser). The high-energy excitation light (such as 450nm blue light) generated by the external laser source 40 is efficiently coupled into the flexible fiber core 10 through the optical coupling connector 30. The light is transmitted along the core and is converted and dispersed, ultimately forming a flexible neon light that emits light uniformly throughout.
[0029] It should be noted that the above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A flexible fiber optic neon light strip, characterized in that, include: The flexible optical fiber core (10) is a long cylindrical shape used to conduct light along its length and emit light from its sidewalls; A flexible functional cladding layer (20) is coaxially clad on the outer peripheral surface of the flexible optical fiber core (10); The flexible functional coating layer (20) is a light-transmitting flexible material layer, and photoluminescent particles (21) and light-diffusing particles (22) are diffusely distributed within the flexible functional coating layer (20).
2. The fiber optic flexible neon light strip according to claim 1, characterized in that, The flexible optical fiber core (10) is a polymer optical fiber with all-body side light emission.
3. The fiber optic flexible neon light strip according to claim 1, characterized in that, The flexible functional cladding layer (20) is a silicone layer integrally extruded with the flexible optical fiber core (10).
4. The fiber optic flexible neon light strip according to claim 1, characterized in that, The flexible functional coating layer (20) also contains light-blocking masterbatch particles (23), which are configured to change the light output direction or focus the light.
5. The fiber optic flexible neon light strip according to claim 1, characterized in that, At least one end of the fiber optic flexible neon light strip is provided with an optical coupling connector (30), which is configured to connect to an external laser source and guide the laser into the end face of the flexible fiber core (10).
6. The fiber optic flexible neon light strip according to claim 5, characterized in that, The optical coupling connector (30) includes a ferrule that fixes the end of the flexible optical fiber core (10) and a fastener located on the outside of the ferrule.