Linear light guide and atmosphere lamp capable of realizing ultra-short mixing distance of light

Abstract

This utility model discloses a linear light guide and ambient light capable of achieving an ultra-short mixing distance. The linear light guide includes a light-emitting section, at least one end of which is sequentially connected to a mixing section and a light-incoming section, both of which have linear structures. The cross-section of the mixing section is a regular polygon. The ambient light includes the linear light guide, a lamp housing adapted to the linear light guide body, and lamp heads corresponding to each light-incoming section. By using the above linear light guide and ambient light, and improving the structure of the mixing section to a linear structure with a regular polygonal cross-section compared to the existing circular cross-section linear structure, the mixing distance can be significantly shortened, achieving sufficient mixing within an ultra-short distance and avoiding color deviation problems in the light-emitting section. Even at the connection point between the light-emitting section and the mixing section, there is no color deviation problem. Furthermore, when using multiple ambient lights, the light emission gap between adjacent ambient lights can be reduced, improving the continuity of the overall lighting effect of the linear ambient light.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically to a linear light guide and ambient light capable of achieving ultra-short light mixing distance. Background Technology

[0002] With rapid technological advancements and increasingly sophisticated user demands for automotive interiors, more and more car models are incorporating ambient lighting designs. Among these, linear ambient lighting is the most widely used, primarily positioned on door panels and the center console. Linear ambient lighting typically employs a continuous arrangement throughout the entire car interior; therefore, a shorter mixing distance enhances the continuity of the overall lighting effect.

[0003] However, the cross-section of the mixing segment in existing linear ambient lights is circular. To shorten the mixing distance and use an ultra-short mixing segment, please refer to [link to relevant documentation]. Figure 1 This will inevitably lead to insufficient light mixing, causing color deviation in the light output section, especially at the junction of the light output section and the light mixing section, where the color deviation problem is more obvious.

[0004] Solving these problems is now a top priority. Utility Model Content

[0005] To address the technical problem that insufficient light mixing occurs when the mixing distance of existing linear light guides is shortened, this invention provides a linear light guide and ambient light capable of achieving an ultra-short mixing distance.

[0006] The technical solution is as follows:

[0007] The first aspect of this application relates to a linear light guide capable of achieving an ultra-short mixing distance, comprising an integrally formed linear light guide body, the linear light guide body including a light emitting segment with a linear structure, at least one end of the light emitting segment being sequentially connected to a mixing segment and a light entering segment, both of which have linear structures, the end face of the light entering segment away from the corresponding mixing segment being a light entering end face, the circumferential sidewall of the light emitting segment having a diffuse reflection structure arranged along its length direction, and the cross-section of the mixing segment being a regular polygon.

[0008] By adopting the above linear light guide, and improving the structure of the light mixing section to a linear structure with a regular polygonal cross-section, compared with the existing linear structure with a circular cross-section, the light mixing distance can be significantly shortened, achieving sufficient light mixing within an ultra-short distance and avoiding color deviation problems in the light output section. Even at the connection between the light output section and the light mixing section, there will be no color deviation problem.

[0009] The second aspect of this application relates to an ambient light, including the aforementioned linear light guide, a lamp housing adapted to the linear light guide body, and lamp heads corresponding to each light-inlet segment. The linear light guide body is installed in the lamp groove of the lamp housing, and the diffuse reflection structure is located on the side of the light-emitting segment near the bottom of the lamp groove. The lamp heads are all installed on the lamp housing, and each light-inlet segment is inserted into the corresponding lamp head, with the light-inlet end face facing the light source of the corresponding lamp head.

[0010] Using the above ambient lights not only possesses all the advantages of linear light guides, but also reduces the light emission gap between adjacent ambient lights when using multiple ambient lights, thus improving the continuity of the overall lighting effect of the linear ambient lights. Attached Figure Description

[0011] Figure 1 The image shows the light mixing effect of a light mixing segment with a circular cross-section in an existing linear light guide.

[0012] Figure 2 This is a schematic diagram of the linear optical guide of Embodiment 1 of this utility model;

[0013] Figure 3 This is a schematic diagram of the linear optical guide in Embodiment 2 of this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the ambient light of this utility model;

[0015] Figure 5 This is a partial structural diagram of the ambient light of this utility model after removing the lampshade and light shield;

[0016] Figure 6 This is a schematic diagram of the lamp holder structure of this utility model;

[0017] Figure 7 This is a diagram illustrating the light mixing effect of the light mixing segment of the linear light guide with a regular hexagonal cross-section, according to this utility model.

[0018] Figure 8 This is a diagram illustrating the light mixing effect of the light mixing segment of the linear light guide with a regular octagonal cross-section, as described in this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0020] Example 1:

[0021] like Figure 2 , Figure 7 and Figure 8As shown, a linear light guide capable of achieving ultra-short mixing distance includes a linear light guide body 1 integrally formed by injection molding. The linear light guide body 1 includes a light emitting section 13, which has a linear structure. One or both ends of the light emitting section 13 are sequentially connected to a mixing section 12 and a light entering section 11, both of which have linear structures. The end face of the light entering section 11 away from the corresponding mixing section 12 is a light entering end face 111. When one end of the light emitting section 13 is sequentially connected to the mixing section 12 and the light entering section 11, the linear light guide body 1 adopts a one-end light entering design. When both ends of the light emitting section 13 are sequentially connected to the mixing section 12 and the light entering section 11, the linear light guide body 1 adopts a two-end light entering design.

[0022] The circumferential sidewall of the light-emitting section 13 has a diffuse reflection structure 131 arranged along its length. The diffuse reflection structure 131 can be an optical tooth structure distributed along the length of the light-emitting section 13, or a frosted or textured structure extending along the length of the light-emitting section 13. The optical tooth structure can take many forms, such as rectangular teeth, elliptical teeth, double rows of teeth, etc. The diffuse reflection structure 131 adopts a frosted or textured structure, which can make the light emission of the light guide not only uniform and soft, forming an excellent diffuse reflection effect, but also avoid the phenomenon of light tooth bright spots, which greatly improves the viewing angle effect of the ambient light.

[0023] In this embodiment, the cross-sections of the light mixing section 12 are all regular polygons. Therefore, by improving the structure of the light mixing section 12 into a linear structure with a regular polygonal cross-section, compared with the existing linear structure with a circular cross-section, the light mixing distance can be significantly shortened, and sufficient light mixing can be achieved within an ultra-short distance, avoiding the problem of color deviation in the light output section. Even at the position where the light output section and the light mixing section are connected, there will be no problem of color deviation.

[0024] Please see Figure 7 and Figure 8 In this embodiment, the cross-section of the light mixing section 12 is preferably a regular hexagon or a regular octagon, which can achieve a very sufficient light mixing effect within an ultra-short distance.

[0025] Please see Figure 3 In this embodiment, the light-inlet end face 111 is composed of arrayed diffuser pits 111a. The diffuser pits 111a are all inwardly concave arc surface structures. With this design, the light rays incident on the light-inlet end face 111 can be immediately dispersed by the densely arranged diffuser pits 111a, thereby achieving sufficient light mixing within a shorter distance.

[0026] Please see Figure 2 In this embodiment, the structures of the light-inlet section 11 and the light-outlet section 13 are consistent with the existing linear light guide structures, both being linear structures with a circular cross-section.

[0027] Example 2:

[0028] Please see Figure 3 The main structure of this embodiment is exactly the same as that of embodiment 1, except that the structure of the light-emitting section 13 is different.

[0029] In this embodiment, the end of the light-emitting segment 13 connected to the light-mixing segment 12 is tapered to form an enhanced light-mixing region 132. Each enhanced light-mixing region 132 is a regular polygon with the same structure as the corresponding light-mixing segment 12. Simultaneously, the diffuse reflection structure 131 extends and is arranged on one side plane of the enhanced light-mixing region 132. This design ensures that there is no color deviation at the connection point between the light-emitting segment and the light-mixing segment, while further shortening the length of the light-mixing segment 12. This reduces the light-emitting gap between adjacent ambient lights when using multiple ambient lights, improving the continuity of the overall lighting effect of the linear ambient light.

[0030] Example 3:

[0031] The main structure of this embodiment is exactly the same as that of Embodiment 1 or Embodiment 2, except that the structure of the light-incoming section 11 is different.

[0032] In this embodiment, the cross-section of the light-incoming segment 11 is a regular polygon with the same structure as the corresponding light-mixing segment 12. This design can further shorten the length of the light-mixing segment 12, thereby reducing the light-emitting gap between adjacent ambient lights when using multiple ambient lights and improving the continuity of the overall lighting effect of the linear ambient lights.

[0033] Example 4:

[0034] Please see Figures 2-6 An ambient light includes a linear light guide of embodiment 1, embodiment 2, or embodiment 3, a lamp housing 2, and one or two lamp heads 3, the number of lamp heads 3 being the same as the number of light-inlet segments 11.

[0035] The lamp housing 2 has a lamp groove 21 adapted to the linear light guide body 1. The linear light guide body 1 is installed in the lamp groove 21. The lamp heads 3 are all installed on the lamp housing 2. Each light-inlet segment 11 is inserted into the corresponding lamp head 3, and the light-inlet end face 111 faces the light source of the corresponding lamp head 3. The diffuse reflection structure 131 on the light-emitting segment 13 is located on the side of the light-emitting segment 13 near the bottom of the lamp groove 21. Thus, the light emitted from the lamp head 3 is transmitted to the light-emitting segment 13 in sequence through the corresponding light-inlet segment 11 and the light-mixing segment 12. Under the action of the diffuse reflection structure 131, the transmission path is changed and the light is emitted from the side of the light-emitting segment 13 away from the diffuse reflection structure 131 (the side of the groove opening of the lamp groove 21).

[0036] Further, please see Figure 4In order to improve the uniformity of the ambient lighting effect, the opening of the light trough 21 is covered with a lampshade 4 that blocks the light-emitting section 13. The lampshade 4 is made of a light-transmitting material, and its main function is to diffuse and uniformly distribute the light. For example, it can be made of PMMA material mixed with a diffusing agent and integrally molded by injection molding.

[0037] In this embodiment, the lampshade 4 is preferably installed on the lamp housing 2 by a snap-fit ​​method, which is simple, reliable and easy to install and remove.

[0038] Further, please see Figure 4 The opening of the light trough 21 is covered with a light shield 5 that blocks the corresponding light mixing section 12. The light shield 5 is made of a light-blocking material, which can effectively block the light mixing section 12 and improve the uniformity of the ambient light brightness.

[0039] In this embodiment, the light shield 5 is preferably installed on the lamp housing 2 by a snap-fit ​​method, which is simple, reliable and easy to install and remove.

[0040] Please see Figures 4-6 The circumferential outer wall of the light mixing section 12 is integrally formed with several lamp slots and anti-rotation protrusions 121. The bottom of the lamp slot 21 is integrally formed with support steps 22 that are adapted to each lamp slot and anti-rotation protrusion 121. Each lamp slot and anti-rotation protrusion 121 is supported on the corresponding support step 22. Through this design, the linear light guide body 1 can be reliably positioned in the lamp slot 21, preventing the linear light guide body 1 from rotating and ensuring the light effect of the ambient light.

[0041] Meanwhile, each of the light-inlet sections 11 has a protruding anti-rotation protrusion 112 and a recessed positioning slot 113 on its circumferential sidewall. Each lamp head 3 has a light-inlet section mounting cylinder 31 that matches the corresponding light-inlet section 11. The cylinder wall of the light-inlet section mounting cylinder 31 has an anti-rotation groove 311 that matches the corresponding anti-rotation protrusion 112 and a positioning protrusion 312 that matches the corresponding positioning slot 113. After the light-inlet sections 11 are inserted into their respective light-inlet section mounting cylinders 31, the anti-rotation protrusions 112 are embedded in their respective anti-rotation grooves 311, and the positioning protrusions 312 are engaged in their respective positioning slots 113. This design ensures precise positioning and reliable connection between the linear light guide body 1 and the lamp head 3, allowing as much light as possible to enter the linear light guide body 1 and guaranteeing the brightness of the ambient light.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A linear light guide capable of achieving an ultra-short mixing distance, comprising an integrally formed linear light guide body (1), the linear light guide body (1) comprising a light-emitting segment (13) with a linear structure, at least one end of the light-emitting segment (13) being sequentially connected to a mixing segment (12) and a light-entry segment (11) both having linear structures, the end face of the light-entry segment (11) away from the corresponding mixing segment (12) being a light-entry end face (111), and the circumferential sidewall of the light-emitting segment (13) having a diffuse reflection structure (131) arranged along its length direction, characterized in that: The cross-sections of the light mixing segment (12) are all regular polygons.

2. The linear optical guide according to claim 1, characterized in that: The light-emitting section (13) is connected to the end of the light-mixing section (12) and the diameter is reduced to form an enhanced light-mixing area (132). The enhanced light-mixing area (132) is a regular polygon with the same structure as the corresponding light-mixing section (12). The diffuse reflection structure (131) is arranged on one side plane of the enhanced light-mixing area (132).

3. The linear optical guide according to claim 1, characterized in that: The cross-section of each light-inlet segment (11) is a regular polygon with the same structure as the corresponding light-mixing segment (12).

4. The linear optical guide according to any one of claims 1-3, characterized in that: The cross-section of the light mixing section (12) is a regular hexagon or a regular octagon.

5. The linear optical guide according to any one of claims 1-3, characterized in that: The light-inlet end face (111) is composed of arrayed astigmatic pits (111a), and the astigmatic pits (111a) are all inwardly concave arc-shaped structures.

6. An ambient light, characterized in that: The light guide includes any one of claims 1-5, a lamp housing (2) adapted to the linear light guide body (1), and lamp heads (3) corresponding to each light-inlet segment (11). The linear light guide body (1) is installed in the lamp groove (21) of the lamp housing (2), and the diffuse reflection structure (131) is located on the side of the light-outlet segment (13) near the bottom of the lamp groove (21). The lamp heads (3) are all installed on the lamp housing (2), and each light-inlet segment (11) is inserted into the corresponding lamp head (3), and the light-inlet end face (111) faces the light source of the corresponding lamp head (3).

7. The ambient light according to claim 6, characterized in that: The opening of the lamp slot (21) is covered by a lamp cover (4) that blocks the light-emitting section (13), and the lamp cover (4) is able to transmit light.

8. The ambient light according to claim 6, characterized in that: The opening of the lamp slot (21) is covered with a light shield (5) that respectively blocks the corresponding light mixing section (12), and the light shield (5) cannot transmit light.

9. The ambient light according to claim 6, characterized in that: The circumferential outer wall of the light mixing section (12) is integrally formed with several lamp grooves and anti-rotation protrusions (121). The bottom of the lamp groove (21) is integrally formed with support steps (22) that are adapted to each lamp groove and anti-rotation protrusion (121). Each lamp groove and anti-rotation protrusion (121) is supported on the corresponding support step (22).

10. The ambient light according to claim 6, characterized in that: The circumferential sidewalls of the light-inlet section (11) are provided with protruding anti-rotation protrusions (112) for lamp head cooperation and recessed positioning slots (113) for lamp head cooperation. Each lamp head (3) is provided with a light-inlet section mounting cylinder (31) that is adapted to the corresponding light-inlet section (11). The cylinder wall of the light-inlet section mounting cylinder (31) is provided with anti-rotation grooves (311) that are adapted to the corresponding anti-rotation protrusions (112) for lamp head cooperation and positioning protrusions (312) that are adapted to the corresponding positioning slots (113) for lamp head cooperation. After the light-inlet section (11) is inserted into the corresponding light-inlet section mounting cylinder (31), the anti-rotation protrusions (112) for lamp head cooperation are embedded in the corresponding anti-rotation grooves (311), and the positioning protrusions (312) are inserted into the corresponding positioning slots (113) for lamp head cooperation.

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