Light guide column capable of preventing light channeling

Abstract

The utility model relates to a light guide column capable of preventing light channeling. The light guide column comprises a light guide assembly. The light guide assembly comprises a plurality of light guide single bodies which are connected. The light guide single bodies are connected through connecting parts; a concave part is formed on at least one surface of the connecting part; each light guide single body comprises a light emitting part and a light mixing part connected with the tail part of the light emitting part; an accommodating cavity for accommodating the light-emitting unit is formed in the light mixing part; a sawtooth part is formed on one side surface, close to the light emitting part, in the accommodating cavity; and the exposed surface of the light emitting part is a concave surface. The concave part of the connecting part scatters and refracts light rays, so that the concentration and reflection of the light rays at the connecting part are reduced, and light channeling is avoided. Due to the existence of the sawtooth part, the roughness and complexity of the inner wall of the containing cavity are increased, when light rays are transmitted in the containing cavity, the light rays are reflected and refracted on the surfaces of the sawteeth for multiple times, and therefore the light rays are mixed in different directions, and the uniformity of the light rays is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, and in particular to a light guide column that prevents light leakage. Background Technology

[0002] With the development of electronic products, various electronic products use LED light sources as signal indicators, and light guide columns, as light guiding media, are widely used in this field. Currently, most of them transmit light through a single cylindrical light guide column, which not only has low light efficiency but also causes light leakage between adjacent light guide columns, resulting in unclear signal indicator lights and greatly reducing the consumer's product experience. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a light guide column that prevents light leakage.

[0004] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0005] A light guide post for preventing light leakage includes a light guide assembly; the light guide assembly includes a plurality of interconnected light guide units; the light guide units are connected by a connecting portion; at least one surface of the connecting portion forms a recess; each light guide unit includes a light emitting portion and a light mixing portion connected to the tail of the light emitting portion; a receiving cavity for accommodating a light emitting unit is formed in the light mixing portion; a serrated portion is formed on the side surface of the receiving cavity near the light emitting portion; the exposed surface of the light emitting portion is a concave surface.

[0006] In one embodiment, the connecting portion includes two recesses disposed opposite to each other and two planar portions disposed opposite to each other.

[0007] In one embodiment, the light-emitting part includes a light-emitting connecting part connected to the light-mixing part and a light-emitting head connected to the other end of the light-emitting connecting part; the light-emitting head is smaller than the light-emitting connecting part to form a step for limiting.

[0008] In one embodiment, both the light-emitting head and the light-emitting connecting part are cylindrical; the diameter of the light-emitting head is smaller than the diameter of the light-emitting connecting part to form a step for limiting; the light-emitting head and the light-emitting connecting part are coaxially arranged.

[0009] In one embodiment, the end face of the light-emitting head away from the light-emitting connection portion is an exposed surface.

[0010] In one embodiment, a limiting block is provided at the end of the light guide component.

[0011] In one embodiment, the top surface of the accommodating cavity is lower than the top surface of the light mixing section to form a stepped section.

[0012] The beneficial effects of this invention are as follows: The recessed part of the connecting portion scatters and refracts light, reducing the concentration and reflection of light at the connecting part and preventing light crosstalk. The presence of the serrated part increases the roughness and complexity of the inner wall of the accommodating cavity. When light propagates within the accommodating cavity, it undergoes multiple reflections and refractions on the serrated surface, causing the light to mix in different directions and effectively improving the uniformity of the light. On the other hand, combined with the structural design of the connecting portion, since the connecting portion effectively reduces the amount and intensity of light from the light guiding unit entering adjacent light guiding units, when a small amount of low-intensity light enters an adjacent light guiding unit, the light emitted from the serrated part needs to undergo multiple reflections and refractions before it can be emitted. The design of the serrated part actually suppresses the emission of low-intensity stray light, causing it to be consumed in multiple reflections and refractions, thus forming an effective anti-light crosstalk effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the utility model;

[0015] Figure 2 This utility model is a three-dimensional Figure 2 ;

[0016] Figure 3 This is an exploded view of the utility model in its usage state;

[0017] Figure 4 yes Figure 3 Enlarged view of section A.

[0018] Explanation of reference numerals in the attached figures:

[0019] 10. Light guide assembly; 11. Light guide unit; 12. Light mixing section; 120. Top surface; 121. Receiving cavity; 122. Serrated section; 123. Open top surface; 124. Stepped section; 13. Light emitting section; 131. Light emitting connection section; 132. Light emitting head; 133. Exposed surface; 14. Connection section; 141. Recessed section; 142. Flat section; 15. Limiting block; 20. Bottom shell; 21. Limiting groove; 22. Light emitting hole; 30. Light emitting unit; 40. Circuit board. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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 a part of the embodiments of this utility model, not all of them. 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. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" 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 "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0023] Example:

[0024] A light guide post for preventing light leakage includes a light guide component 10; the light guide component 10 is made of materials commonly used in the art, including but not limited to polymethyl methacrylate (PMMA), polycarbonate (PC), polystyrene (PS), and polymer composite transparent materials.

[0025] In one embodiment, the light guide assembly 10 includes a plurality of interconnected light guide units 11; the light guide units 11 are connected by a connecting portion 14; at least one surface of the connecting portion 14 forms a recess 141; the design of the recess 141 allows the connecting portion 14 to reduce the overall weight and save materials while ensuring connection strength. The recess 141 can scatter and refract light to a certain extent, which helps to reduce the reflection and concentration of light at the connecting portion 14 of the light guide unit 11. More importantly, the setting of the recess 141 can effectively prevent light leakage between adjacent light guide units 11. The concave surface can effectively guide the light entering the connecting portion 14 to the outside of the connecting portion 14 and weaken the light, reducing or preventing light from entering the adjacent receiving cavity 121;

[0026] In one embodiment, the light guide unit 11 includes a light-emitting section 13 and a light-mixing section 12 connected to the tail of the light-emitting section 13. The light-emitting section 13 is mainly responsible for effectively outputting light to the outside, while the light-mixing section 12 focuses on mixing and homogenizing the light to ensure that the light entering the light-emitting section 13 has high uniformity, thereby improving the light output quality of the entire light guide column. A receiving cavity 121 for accommodating the light-emitting unit 30 is formed within the light-mixing section 121. A serrated portion 122 is formed on the side of the receiving cavity 121 near the light-emitting section 13. The presence of the serrated portion 122 increases the roughness and complexity of the inner wall of the receiving cavity 121. When light propagates within the receiving cavity 121, it undergoes multiple reflections and refractions on the serrated surface, thereby mixing the light in different directions and effectively improving the uniformity of the light. This light-mixing effect can prevent light from being too concentrated in local areas, making the light emitted from the light guide column softer and more uniform, reducing light spots and differences in brightness. The sawtooth structure allows light to enter the wall of the accommodating cavity 121 at different angles, thereby changing the direction of light propagation. This allows light that might have been directly reflected out of the light guide column to re-enter the light guide column for propagation, reducing light loss caused by direct reflection and improving light utilization efficiency. On the other hand, combined with the structural design of the connecting part 14, the connecting part 14 effectively reduces the amount and intensity of light from the light guide unit entering adjacent light guide units. When a small amount of low-intensity light enters an adjacent light guide unit, the light emitted from the sawtooth part 122 needs to undergo multiple reflections and refractions before it can be emitted. The design of the sawtooth part 122 actually suppresses the emission of low-intensity stray light, causing it to be consumed in multiple reflections and refractions, thus forming an effective anti-sparking light effect.

[0027] In one embodiment, the exposed surface 133 of the light-emitting portion 13 is concave. The concave design allows light to refract and scatter upon emission, altering the direction of light propagation and enabling the light to exit into the external space at a wider angle, resulting in better visual effects. The concave surface also allows for a more uniform distribution of light upon emission, preventing light from concentrating in certain directions and creating strong glare, thereby improving visual comfort. Reducing glare can effectively improve people's visual experience and reduce eye fatigue.

[0028] In one embodiment, the connecting portion 14 includes two opposing recesses 141 and two opposing planar portions 142. The multiple recesses 141 can further scatter and refract optical fibers in different directions, allowing them to be transmitted as far as possible to the outside of the connecting portion 14, effectively avoiding light crosstalk and improving the overall optical performance of the light guide column. The recesses 141 increase the surface area of ​​the connecting portion 14, which is beneficial for heat dissipation. Heat generated during the light guiding process can be dissipated in a timely manner, preventing heat accumulation from affecting the performance and lifespan of the light guide column, and improving the heat dissipation performance and stability of the light guide column.

[0029] In one embodiment, the light-emitting part 13 includes a light-emitting connecting part 131 connected to the light-mixing part 12 and a light-emitting head 132 connected to the other end of the light-emitting connecting part 131; the light-emitting head 132 is smaller than the light-emitting connecting part 131 to form a step for limiting. The step structure can serve as a limiting structure, which can accurately limit the position of the light-emitting part 13 when installing light guides or cooperating with other components, ensuring its relative position with other components; the design that the light-emitting head 132 is smaller than the light-emitting connecting part 131 can optimize the light-emitting area. The area where the light-emitting connecting part 131 is larger than the light-emitting part 13 is located on the outer periphery of the light-emitting part 13. This area will be blocked by the opaque shell when acting as a limit, preventing the light from escaping, thus making the light-emitting part 13 located in the middle form a better light-emitting area;

[0030] In one embodiment, both the light-emitting head 132 and the light-emitting connecting portion 131 are cylindrical; the diameter of the light-emitting head 132 is smaller than the diameter of the light-emitting connecting portion 131 to form a step for limiting; the light-emitting head 132 and the light-emitting connecting portion 131 are coaxially arranged. The cylindrical structure has good symmetry, which is beneficial for the uniform and symmetrical propagation and emission of light within the light-emitting portion 13.

[0031] In one embodiment, the end face of the light-emitting head 132 away from the light-emitting connection portion 131 is an exposed surface 133. By designating this end face as an exposed surface 133, light can be emitted directly from this specific surface. This exposed surface 133 facilitates various surface treatment processes to further optimize optical performance. For example, the exposed surface 133 can be frosted to make light scattering more uniform, reduce glare, and improve visual comfort; or it can be coated, such as with an anti-reflection coating, to reduce light reflection on the emitting surface, increase light transmittance, and improve the overall optical efficiency of the light guide column.

[0032] In one embodiment, a limiting block 15 is provided at the end of the light guide assembly 10. The limiting block 15 can play a role in precise positioning when installing the light guide assembly 10. It can cooperate with the corresponding structure (such as a slot, groove, etc.) at the installation position to ensure that the light guide assembly 10 is accurately installed in the predetermined position and avoid problems such as offset, tilting or misalignment during the installation process.

[0033] In one embodiment, the open top surface 123 of the accommodating cavity 121 is lower than the top surface 120 of the light mixing section 12 to form a stepped section 124; the stepped section 124 can serve as a reference surface for installation positioning. When the light guide assembly 10 is installed onto other components, the installation position of the light guide assembly 10 can be accurately determined by the structure that mates with the stepped section 124, ensuring the accuracy and consistency of the installation.

[0034] like Figures 3-4 As shown, it includes a bottom shell 20 and a circuit board 40; the bottom shell 20 is provided with a limiting groove 21 for mounting the light guide assembly 10; the side wall of the bottom shell 20 is provided with a light emission hole 22 for accommodating the light emission head 132; the bottom of the circuit board 40 is provided with a light-emitting unit 30; the light-emitting unit 30 is an LED lamp bead, which can be soldered to the bottom of the circuit board 40; during installation, the bottom of the circuit board 40 abuts and is fixed to the open top surface 123, so that the LED lamp bead is located in the accommodating cavity 121.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A light guide column for preventing light leakage, characterized in that: The light guide assembly (10) includes a plurality of interconnected light guide units (11); the light guide units (11) are connected by a connecting part (14); at least one surface of the connecting part (14) forms a recess (141); the light guide unit (11) includes a light emitting part (13) and a light mixing part (12) connected to the tail of the light emitting part (13); a receiving cavity (121) for accommodating a light emitting unit (30) is formed in the light mixing part (12); a serrated part (122) is formed on the side surface of the receiving cavity (121) near the light emitting part (13); the exposed surface (133) of the light emitting part (13) is a concave surface.

2. The light guide column for preventing light leakage according to claim 1, characterized in that: The connecting portion (14) includes two recesses (141) and two planar portions (142) arranged opposite to each other.

3. The light guide post for preventing light leakage according to claim 1, characterized in that: The light-emitting part (13) includes a light-emitting connecting part (131) connected to the light-mixing part (12) and a light-emitting head (132) connected to the other end of the light-emitting connecting part (131); the light-emitting head (132) is smaller than the light-emitting connecting part (131) to form a step for limiting.

4. A light guide post for preventing light leakage according to claim 3, characterized in that: Both the light-emitting head (132) and the light-emitting connecting part (131) are cylindrical; the diameter of the light-emitting head (132) is smaller than the diameter of the light-emitting connecting part (131) to form a step for limiting; the light-emitting head (132) and the light-emitting connecting part (131) are coaxially arranged.

5. A light guide post for preventing light leakage according to claim 3, characterized in that: The end face of the light-emitting head (132) away from the light-emitting connection part (131) is the exposed surface (133).

6. The light guide post for preventing light leakage according to claim 1, characterized in that: The light guide assembly (10) is provided with a limiting block (15) at its end.

7. A light guide post for preventing light leakage according to claim 1, characterized in that: The open top surface (123) of the accommodating cavity (121) is lower than the top surface (120) of the light mixing part (12) to form a stepped part (124).

Images