Light-emitting diode lamp string with optical fiber

Abstract

The utility model discloses a light-emitting diode lamp string with light-guide fibers. The light-emitting diode lamp string comprises a first wire, a second wire, light-emitting diodes and the light-guide fibers. The light-emitting diode is connected in parallel between the first wire and the second wire. The light-emitting diode is provided with a light-emitting surface, and when the light-emitting diode is actuated, light rays are generated on the light-emitting surface to have first brightness. The light guide fiber is provided with a light inlet end, a side light outlet part and a light outlet end. The light-in end is connected with the light-emitting surface, and the light-in end, the light-out end and the light-emitting surface are substantially aligned with the plumb line. The light has second brightness at the light emitting end, the light has third brightness at the side light emitting part, the first brightness is substantially equal to the second brightness, and the second brightness is larger than the third brightness.

Description

Technical Field

[0001] The utility model relates to a light emitting diode lamp string with optical fibers, in particular to a light emitting diode lamp string with optical fibers in which light from the light emitting diode is conducted through the optical fibers. Background Art

[0002] To save energy, most traditional light strings have replaced tungsten filament bulbs with light-emitting diodes. Traditional light strings solder light-emitting diodes to wires and control the diodes on the wires through a control circuit. However, when traditional light strings are placed in an environment, obstructions in the environment can block some of the light-emitting diodes, reducing the overall brightness of the light string. For example, when hanging a light string on a Christmas tree, the leaves or ornaments of the tree often block most of the light-emitting diodes, affecting the visual effect of the light string's overall glow. Furthermore, to address the problem of reduced brightness caused by obstructions, the current solution is to increase the number of light-emitting diodes in the light string. However, increasing the number of light-emitting diodes not only increases power consumption but also increases costs, making the product uncompetitive in the market.

[0003] Furthermore, traditional light strings often include a casing around the LEDs to enhance their visual appeal. However, this additional casing hinders light transmission, and even transparent casings reduce the energy of the light, resulting in visually insufficient brightness or affecting the color of the light. Utility Model Content

[0004] In view of this, in some embodiments, a light-emitting diode light string having an optical fiber is provided, comprising a first conductor, a second conductor, a light-emitting diode, the optical fiber, and a light-transmitting colloid. The light-emitting diode is connected in parallel between the first conductor and the second conductor. The light-emitting diode has a light-emitting surface and, when activated, generates light having a first brightness on the light-emitting surface. The optical fiber has a light input end, a light output end, and a side light output portion. The light input end is connected to the light-emitting surface, and the light input end, the light output end, and the light-emitting surface are substantially aligned on a plumb line. The light has a second brightness at the light output end, and a third brightness at the side light output portion, wherein the first brightness is substantially equal to the second brightness, and the second brightness is greater than the third brightness.

[0005] In some embodiments, the optical fiber has multiple optical structures, each of which is located at a light-emitting end. Light passes through the multiple optical structures to form scattered light.

[0006] In some embodiments, the optical fiber has a plurality of optical structures, each of which is located at a side light outlet portion. Light passes through the plurality of optical structures to form scattered light.

[0007] In some embodiments, the side light emitting portion has a first groove and a second groove, and the first groove is parallel to the second groove.

[0008] In some embodiments, the side light emitting portion has a first groove and a second groove, and the first groove intersects with the second groove.

[0009] In some embodiments, the light-emitting end has a convex surface and a concave surface, and the concave surface faces the light-emitting surface.

[0010] In some embodiments, there are multiple optical fibers, and the light input ends of the optical fibers are respectively connected to the light emitting surfaces.

[0011] In some embodiments, the device further includes a light-transmitting colloid that connects the light-entering end to the light-emitting surface. The light-transmitting colloid has a first end and a second end, with the first end located at the light-entering end and the second end substantially aligned with the light-emitting end. The diameter of the first end is smaller than the diameter of the second end. The optical fibers are radially arranged on the light-emitting surface.

[0012] In some embodiments, the plurality of optical fibers includes a first optical fiber and a second optical fiber, the length of the first optical fiber being greater than the length of the second optical fiber.

[0013] In some embodiments, the light-transmitting colloid has a first end and a second end, the first end is adjacent to the light input end, and the second end is located between the light input end and the light output end. Each optical fiber has a vertical section and a curled section, the vertical section is adjacent to the light input end, and the curled section is adjacent to the light output end.

[0014] In some embodiments, the light-emitting end is connected to the light-transmitting element, and the area of ​​the light-transmitting element is larger than the area of ​​the light-emitting end.

[0015] In summary, in some embodiments, an LED light string with optical fibers connects the optical fibers to the LEDs, allowing the light from the LEDs to be transmitted through the optical fibers, thereby extending the light output position. Thus, compared to traditional light strings, while maintaining the same lighting effect (visual brightness), the extended light output position of the LED light string with optical fibers can prevent obstructions from partially blocking the light from the LEDs, thereby increasing the overall brightness in the installation environment. Thus, compared to traditional light strings, the LED light string with optical fibers can reduce the total number of LEDs, thereby reducing costs and power consumption. In some embodiments, the LED light string with optical fibers can also be equipped with optical fibers of smaller diameters. Thus, the LED light string with optical fibers can produce a variety of lighting effects by varying the number, shape, or length of the optical fibers.

[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a perspective view of a light-emitting diode light string with optical fibers in some embodiments of the present invention.

[0018] Figure 2 This is a circuit diagram of a light-emitting diode light string with optical fibers in some embodiments of the present invention.

[0019] Figure 3 for Figure 1 Cross-section view in the AA direction.

[0020] Figure 4 In some embodiments of the present invention, a schematic diagram of the use of an LED light string with optical fibers is provided, showing the use of the LED light string with optical fibers disposed on an object.

[0021] Figure 5 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers is shown, showing that the microstructure is located at the light-emitting end.

[0022] Figure 6 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers is shown, showing that the microstructure is located at the side light-emitting portion.

[0023] Figure 7 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers shows that the grooves of the side light-emitting portion are longitudinal.

[0024] Figure 8 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers shows that the grooves of the side light-emitting portion are horizontal.

[0025] Figure 9 In some embodiments of the present invention, a three-dimensional diagram of an LED light string with optical fibers shows that a first groove intersects a second groove.

[0026] Figure 10A The present invention is a three-dimensional diagram of a light-emitting diode light string with optical fibers in some embodiments, showing an exemplary example of the optical fibers (1).

[0027] Figure 10B This is a three-dimensional diagram of a light-emitting diode light string with optical fibers in some embodiments of the present invention, showing an exemplary embodiment of the optical fibers (II).

[0028] Figure 11 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers is shown, showing that a plurality of optical fibers are coated with a light-transmitting colloid.

[0029] Figure 12 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers shows that a light-transmitting colloid is wrapped around a plurality of optical fibers arranged in a radial pattern.

[0030] Figure 13 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers shows multiple optical fibers arranged radially and exposed from a light-transmitting colloid.

[0031] Figure 14 In some embodiments of the present invention, a three-dimensional diagram of an LED light string with optical fibers shows a curved optical fiber.

[0032] Wherein, the reference numerals:

[0033] 100, 200: LED light string with optical fiber

[0034] 10: Control circuit

[0035] 20: Arrangement

[0036] 22: Blade

[0037] 101: Insulation sheath

[0038] 102, 202: First conductor

[0039] 103: First polarity part

[0040] 104, 204: Second wire

[0041] 105: Second polarity part

[0042] 106, 106', 206: Light-emitting diodes

[0043] 108, 208: Optical fiber

[0044] 110, 210: Translucent colloid

[0045] 112, 212: Luminous surface

[0046] 114, 214: light input end

[0047] 116, 216: side light output

[0048] 118, 218: light output end

[0049] 120: Fiber core

[0050] 122: Optical structure

[0051] 124: First groove

[0052] 126: Second groove

[0053] 128: protrusion

[0054] 129: Translucent parts

[0055] 130: Concave

[0056] 132: Convex

[0057] 220: First end

[0058] 222: Second end

[0059] 224: First optical fiber

[0060] 226: Second optical fiber

[0061] 228: Vertical segment

[0062] 230: Curl section

[0063] L1, L11, L12, L13: light

[0064] L2: Scattered light

[0065] PL: Plumb Line

[0066] AA: Hatch DETAILED DESCRIPTION

[0067] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0068] Please also refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 This is a perspective view of a light-emitting diode light string with optical fibers in some embodiments of the present invention. Figure 2 This is a circuit diagram of a light-emitting diode light string with optical fibers in some embodiments of the present invention. Figure 3 for Figure 1 In some embodiments, as shown in FIG. Figure 1 、 Figure 2 and Figure 3As shown, an LED light string 100 with optical fibers includes a first conductor 102, a second conductor 104, an LED 106, and an optical fiber 108. LED 106 is connected in parallel between first and second conductors 102, 104. LED 106 has a light-emitting surface 112. When activated, LED 106 generates light L1 at a first brightness on light-emitting surface 112. Optical fiber 108 has a light input end 114, a side light output portion 116, and a light output end 118. Light input end 114 is connected to light-emitting surface 112. Light input end 114, light output end 118, and light-emitting surface 112 are substantially aligned with a plumb line PL. Light L1 at light output end 118 has a second brightness, and light L1 at side light output portion 116 has a third brightness. The first brightness is substantially equal to the second brightness, and the second brightness is greater than the third brightness.

[0069] In some embodiments, the LED light string 100 with optical fibers further includes a translucent colloid 110. The aforementioned connection between the light input end 114 and the light-emitting surface 112 can be achieved by directly bonding the light input end 114 to the light-emitting surface 112 via the translucent colloid 110. Alternatively, a transparent sleeve (not shown) can be connected to the LED 106 at one end and the optical fiber 108 at the other end, indirectly securing the optical fiber 108 to the LED 106 and bringing the light input end 114 into contact with the light-emitting surface 112.

[0070] First and second conductors 102, 104 are used to receive power or an activation signal, forming a loop with first and second conductors 102, 104, and LED 106. First and second conductors 102, 104 may be encased in an insulating sheath 101, allowing them to be suspended from an object (described later). In some embodiments, LED 106 may also be connected to multiple conductors (including first and second conductors 102, 104) or to a loop formed by multiple conductors.

[0071] The LED 106 may be a micro light emitting diode (Micro Light Emitting Diode), an organic light emitting diode (OLED), a quantum dot LED (QLED), a mini LED, or a polymer light emitting diode (PLED). In some embodiments, the LED 106 has a first polarity portion 103 and a second polarity portion 105. The LED 106 may be connected to the first wire 102 via the first polarity portion 103, and to the second wire 104 via the second polarity portion 105. Alternatively, the LED 106 may be connected to the second wire 104 via the first polarity portion 103, and to the first wire 102 via the second polarity portion 105. In some embodiments, the LED 106 may emit a single color of light and be arranged between the first wire 102 and the second wire 104. Alternatively, the LED 106 may emit multiple colors of light in sequence between the first wire 102 and the second wire 104, thereby creating different visual effects for the fiber optic LED light string 100.

[0072] The light-transmitting adhesive 110 can be, for example, a light-curing adhesive. Before curing, the light-transmitting adhesive 110 can be applied to the light-emitting surface 112, allowing the optical fiber 108 to be placed within the light-transmitting adhesive 110 with its light-incoming end 114 in contact with the light-emitting surface 112. Subsequently, ultraviolet light is irradiated onto the light-transmitting adhesive 110, causing the adhesive-like light-transmitting adhesive 110 to cure, thereby securing the optical fiber 108 to the light-emitting surface 112.

[0073] In some embodiments, after the first wire 102 and the second wire 104 are connected to the control circuit 10, the control circuit 10 can send an activation signal to the first wire 102 or the second wire 104, so that the light emitting diode 106 can generate light L1 according to the activation signal. In addition, the light emitting diode light string 100 with optical fiber can be provided with light emitting diodes 106 of different polarities. For example Figure 2 As shown, the polarity of LED 106 and LED 106' are opposite. When the control circuit 10 outputs a high voltage on the first wire 102 and a low voltage on the second wire 104, LED 106 is activated to emit light while LED 106' is not. Conversely, when the control circuit 10 outputs a low voltage on the first wire 102 and a high voltage on the second wire 104, LED 106 is not activated and LED 106' is illuminated.

[0074] The optical fiber 108 has a core 120 between the light input end 114, the side light output portion 116, and the light output end 118. The core 120 has a first refractive index. The side light output portion 116 surrounds the side of the core 120 and has a second refractive index. The first refractive index is greater than the second refractive index. Figure 3 As shown, a portion of the light L1 can undergo total internal reflection (Total Internal Reflection) in the fiber core 120, so that the light L1 is transmitted to the light-emitting end 118 through the fiber core 120 and emitted to the outside of the optical fiber 108. Another portion of the light L1 can pass through the side light-emitting portion 116 and be emitted to the outside of the optical fiber 108. Figure 3 The brightness of the middle light L11) is substantially equal to the brightness of the light-emitting end 118 (e.g. Figure 3 The brightness of the light emitting end 118 is greater than the brightness of the side light emitting portion 116 (such as Figure 3 Here, the light emitting surface 112, the side light emitting portion 116 and the light emitting end 118 can present light emitting effects of different brightness. Figure 3 As shown, the height of the optical fiber 108 (in Figure 3 The distance from the light input end 114 to the light output end 118 in the Z-axis direction is greater than the height of the light emitting diode 106 (in Figure 3 The distance from the light emitting surface 112 to the insulating outer skin 101 in the Z-axis direction. Here, the light L1 can extend the light output position through the optical fiber 108 (described later in Figure 4 In addition, the optical fiber 108 has the characteristic of low loss in transmitting light energy, so that the brightness of the light output end 118 is substantially equal to the brightness of the light emitting surface 112, thereby maintaining the color and brightness of the light L1 and maximally maintaining the luminous effect of the light L1.

[0075] See also Figure 4 , Figure 4 In some embodiments of the present invention, a schematic diagram of a light-emitting diode light string with optical fibers is provided, showing the use of the light-emitting diode light string with optical fibers on an arrangement. The arrangement 20 shown in the figure can be a Christmas tree. In some embodiments, as Figure 4As shown, after the fiber-optic LED light string 100 is placed on the object 20, the fiber-optic light string 108 is exposed between the leaves 22 of the Christmas tree. When the LED 106 is activated, a portion of the light L1 is emitted from the fiber-optic light string 108 through the light-emitting end 118, allowing this portion of the light L1 to illuminate around the object 20 (Christmas tree) without being blocked by the leaves 22. The length of the fiber-optic light string 108 can be determined based on the length of the leaves 22 (or other obstructing objects). For example, the length of the fiber-optic light string 108 can be designed to be greater than or equal to the length of the leaves 22. This allows more light L1 to be visually detected when the fiber-optic LED light string 100 is viewed from a distance from the object 20. In contrast, when a conventional light string is illuminated, most of the light L1 is blocked by the leaves 22, resulting in a dim appearance. Here, under the same lighting effect (visual brightness), the LED light string 100 with optical fiber can reduce the total number of LEDs 106 compared to the traditional light string. For example, the traditional light string uses 1500 light sources (such as LEDs), while the LED light string 100 with optical fiber can achieve the same visual effect (which can be referred to as brightness) by setting 800 LEDs 106. It should be noted that, Figure 4 Only a single LED 106 is used as an example. The LED light string 100 with optical fiber can also increase or shorten the length of the wires (102, 104) according to needs, and arrange the LEDs 106 at intervals according to the length of the wires (102, 104) to increase the lighting effect and range.

[0076] See also Figure 5 , Figure 5 In some embodiments of the present invention, a stereoscopic diagram of a light-emitting diode light string with an optical fiber is provided, showing that the microstructure is located at the light-emitting end. Figure 5 As shown, the optical fiber 108 has a plurality of optical structures 122. Each optical structure 122 is located at the light-emitting end 118. When the light L1 passes through the plurality of optical structures 122, scattered light L2 is formed. The scattered light L2, due to the scattering effect of the optical structures 122, appears to be dispersed, uniform, and softer than the light L1. The optical structure 122 can be a regular and / or irregular concave-convex structure, a cutout, or a matte surface. The regular and / or irregular concave-convex structure can be formed on the light-emitting end 118 through surface treatment technology (e.g., polishing or rubbing), so that the optical structure 122 has optical refraction or scattering effects (e.g., forming a matte surface).

[0077] See also Figure 6 , Figure 6 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with an optical fiber is provided, showing that the microstructure is located at the side light-emitting portion. Figure 6As shown, the optical structure 122 may also be located in the side light emitting portion 116 , and the light L1 passes through the optical structure 122 of the side light emitting portion 116 to form scattered light L2 . Figure 5 and Figure 6 The structure of the optical structure 122 is similar, and can be referred to Figure 5 Description of the optical structure 122 in FIG.

[0078] In some embodiments, as Figure 5 and Figure 6 As shown, the optical structure 122 can also be located at both the side light emitting portion 116 and the light emitting end 118 (not shown). Here, when the light L1 is emitted from the optical fiber 108 at the side light emitting portion 116 and the light emitting end 118, the entire light L1 of the optical fiber 108 can be visually dispersed and uniform.

[0079] Please also refer to Figure 7 and Figure 8 . Figure 7 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers shows that the grooves of the side light-emitting portion are longitudinal. Figure 8 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with an optical fiber shows that the groove of the side light-emitting portion is horizontal. Figure 7 or Figure 8 The light emitting diode 106 is disposed in the side light emitting portion 116. The side light emitting portion 116 of the light emitting diode 106 has a first groove 124 and a second groove 126. The first groove 124 is parallel to the second groove 126. When the light L1 passes through the side light emitting portion 116, the light L1 irradiated by the grooves (124, 126) changes its direction of travel in the grooves (124, 126), causing the light L1 to be refracted and focused on the grooves (124, 126). More light L1 is emitted from the grooves (124, 126), forming multiple light strips on the optical fiber 108. For example, Figure 7 The two ends of the first groove 124 and the second groove 126 extend to the light input end 114 and the light output end 118 respectively, so that the groove 126 extends according to the direction of travel of the light L1 (ie Figure 7 Here, when the light L1 passes through the side light emitting portion 116, the optical fiber 108 as a whole can visually display the optical effect of longitudinal light stripes. Figure 8 The LED 106 is shown. The first groove 124 and the second groove 126 surround the side light emitting portion 116, and there is a distance between the first groove 124 and the second groove 126. Here, the first groove 124 and the second groove 126 can be stacked on the side light emitting portion 116 at a distance. When light L1 passes through the side light emitting portion 116, the optical fiber 108 as a whole visually displays an optical effect of horizontal light stripes.

[0080] See also Figure 9 , Figure 9 In some embodiments of the present invention, a perspective view of a light emitting diode light string with an optical fiber shows that the first groove intersects the second groove. In some embodiments, as Figure 9 As shown, the first groove 124 of the side light emitting portion 116 intersects with the second groove 126. Here, when the light L1 passes through the side light emitting portion 116, the entire optical fiber 108 can visually display an optical effect of a cross-beam shape.

[0081] See also Figure 10A , Figure 10A In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers is shown, showing an example of optical fibers (1). In some embodiments, as Figure 10A As shown, the light-emitting end 118 has a protrusion 128. The protrusion 128 has a concave surface 130 and a convex surface 132, with the concave surface 130 facing the light-emitting surface 112. The protrusion 128 is used to collect light L1, causing the light L1 from the light-emitting end 118 to be concentrated on the convex surface 132, thereby increasing the brightness of the light-emitting end 118. In some embodiments, the concave surface 130 and / or the convex surface 132 are matte.

[0082] See also Figure 10B In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers is shown, showing an example of optical fibers (II). In some embodiments, such as Figure 10B As shown, light-emitting end 118 is connected to light-transmitting member 129, which can be made of a transparent material such as solid colloid or acrylic. Light-emitting end 118 can direct light L1 toward light-transmitting member 129, where it changes the shape of the light to enhance the visual effect. In some embodiments, the area of ​​light-transmitting member 129 is larger than that of light-emitting end 118.

[0083] See also Figure 11 , Figure 11 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers is shown, showing a plurality of optical fibers covered with a light-transmitting colloid. In some embodiments, such as Figure 11As shown, an LED light string 200 with optical fibers includes a first conductor 202, a second conductor 204, an LED 206, a plurality of optical fibers 208, and a light-transmitting colloid 210. The LED 206 is connected in parallel between the first conductor 202 and the second conductor 204. The LED 206 has a light-emitting surface 212. When activated, the LED 206 generates light L1 having a first brightness on the light-emitting surface 212. The plurality of optical fibers 208 each have a light input end 214, a side light output portion 216, and a light output end 218. Each light input end 214 is connected to the light-emitting surface 212. The light-transmitting colloid 210 connects each light input end 214 to the light-emitting surface 212. The light L1 has a second brightness at each light output end 218, and a third brightness at the side light output portion 216. The first brightness is substantially equal to the second brightness, and the second brightness is greater than the third brightness.

[0084] The first conductor 202, the second conductor 204, the light emitting diode 206 and the light-transmitting colloid 210 of the light emitting diode light string 200 with optical fiber and the light emitting diode light string 100 with optical fiber (see Figure 1 Here, please refer to the description of the first wire 202, the second wire 204, the light emitting diode 206 and the light-transmitting colloid 210. Figures 1 to 4 .according to Figure 11 As shown, a plurality of optical fibers 208 are respectively connected to the light emitting surface 212 , and the light L1 can be emitted from each optical fiber 208 through each light emitting end 218 , so that the light L1 can form a plurality of scattered light spots at each light emitting end 218 .

[0085] In some embodiments, the diameter of the optical fiber 208 may be determined according to the area of ​​the light emitting surface 112. For example, if the optical fiber 208 has a smaller diameter, a greater number of optical fibers 208 may be disposed on the light emitting surface 112.

[0086] See also Figure 12 , Figure 12 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers is shown, showing a plurality of optical fibers arranged radially and coated with a light-transmitting colloid. In some embodiments, as Figure 12 As shown, the light-transmitting colloid 210 has a first end 220 and a second end 222. The first end 220 is located at the light-incoming end 214, and the second end 222 is substantially aligned with the light-emitting end 218. The diameter of the first end 220 is smaller than the diameter of the second end 222, so that the light-transmitting colloid 210 is conical in shape. The optical fibers 208 are arranged radially on the light-emitting surface 212. Figure 12 In some embodiments, the first end 220 is located on the light emitting surface 212 , and the second end 222 may also be located between the upper light input end 214 and the light output end 218 .

[0087] See also Figure 13 , Figure 13 In some embodiments of the present invention, a three-dimensional diagram of a light-emitting diode light string with optical fibers shows multiple optical fibers arranged radially and exposed in a light-transmitting colloid. In some embodiments, as Figure 13 As shown, the plurality of optical fibers 208 include a first optical fiber 224 and a second optical fiber 226. A light-transmitting colloid 210 is coated between the light-emitting surface 112 and each light-emitting end 118. The length of the first optical fiber 224 is greater than that of the second optical fiber 226. Therefore, when light L1 passes through the light-emitting ends 218 of the first optical fiber 224 and the second optical fiber 226, respectively, the first optical fiber 224 and the second optical fiber 226 produce an optical effect of light spots at different heights.

[0088] See also Figure 14 , Figure 14 In some embodiments of the present invention, a perspective view of a LED light string with an optical fiber is provided, showing a curved optical fiber. Figure 14 As shown, the first end 220 of the light-transmitting colloid 210 is adjacent to the light-input end 214, and the second end 222 is located between the light-input end 214 and the light-output end 218. Each optical fiber 208 further includes a vertical section 228 and a curved section 230. The vertical section 228 is adjacent to the light-input end 214, and the curved section 230 is adjacent to the light-output end 218. The light-transmitting colloid 210 does not cover the curved section 230, allowing the curved section 230 to be exposed and curled outside the light-transmitting colloid 210, curling toward the outside of the LED 206. Thus, light L1 can be emitted through the light-output end 218 of the curved section 230, which extends outward.

[0089] In summary, in some embodiments, the fiber-optic LED light string 100 connects the optical fiber 108 to the LED 106, allowing the light L1 from the LED 106 to be transmitted through the optical fiber 108 to extend the light output position. Thus, compared to traditional light strings, the fiber-optic LED light string 100, by extending the light output position, can prevent obstructions (such as Christmas tree leaves 22) from partially blocking the light L1 from the LED 106, thereby increasing overall brightness in the installation environment. Thus, the fiber-optic LED light string 100 can reduce the total number of LEDs 106 compared to traditional light strings, thereby reducing costs. In some embodiments, the fiber-optic LED light string 200 can also use thinner-diameter optical fibers 208 connected to the LED 206. Thus, the fiber-optic LED light string 200 can produce a variety of lighting effects by varying the number, shape, or length of the optical fibers 208.

[0090] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A light emitting diode light string with optical fiber, characterized in that: Include: First conductor; Second wire; a light emitting diode connected in parallel between the first conductive line and the second conductive line, the light emitting diode having a light emitting surface and generating light with a first brightness on the light emitting surface when activated; as well as An optical fiber having a light input end, a light output end, and a side light output portion, wherein the light input end is connected to the light emitting surface, and the light input end, the light output end, and the light emitting surface are substantially aligned on a plumb line; The light has a second brightness at the light-emitting end, and has a third brightness at the side light-emitting portion. The first brightness is substantially equal to the second brightness, and the second brightness is greater than the third brightness.

2. The light emitting diode light string with optical fiber according to claim 1, wherein: The optical fiber has a plurality of optical structures, each of which is located at the light-emitting end. The light passes through the plurality of optical structures to form scattered light.

3. The light emitting diode light string with optical fiber according to claim 1, wherein: The optical fiber has a plurality of optical structures, each of which is located at the side light-emitting portion. The light passes through the plurality of optical structures to form scattered light.

4. The light emitting diode light string with optical fiber according to claim 1, wherein: The side light emitting portion has a first groove and a second groove, and the first groove is parallel to the second groove.

5. The light emitting diode light string with optical fiber according to claim 1, wherein: The side light emitting portion has a first groove and a second groove, and the first groove intersects with the second groove.

6. The light emitting diode light string with optical fiber according to claim 1, wherein: The light-emitting end has a convex surface and a concave surface, and the concave surface faces the light-emitting surface.

7. The light emitting diode light string with optical fiber according to claim 1, wherein: There are a plurality of optical fibers, and the light-incoming ends of the optical fibers are respectively connected to the light-emitting surface.

8. The light emitting diode light string with optical fiber according to claim 7, characterized in that: The plurality of optical fibers include a first optical fiber and a second optical fiber. The length of the first optical fiber is greater than the length of the second optical fiber.

9. The light emitting diode light string with optical fiber according to claim 7, characterized in that: It also includes a light-transmitting colloid, connecting the light-input end to the light-emitting surface; the light-transmitting colloid has a first end and a second end, the first end is adjacent to the light-input end, and the second end is located between the light-input end and the light-emitting end. Each optical fiber has a vertical section and a curled section, the vertical section is adjacent to the light-input end, and the curled section is adjacent to the light-emitting end.

10. The light emitting diode light string with optical fiber according to claim 1, wherein: The light-emitting end is connected to the light-transmitting element, and the area of ​​the light-transmitting element is larger than the area of ​​the light-emitting end.

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