Combined light guide structure
By designing a combined light guide structure, the problem of uneven light illumination in the light guide is solved by superimposing two light guides and reflecting light through the light guide teeth. This achieves a uniform light emission effect and improves design efficiency.
Patent Information
- Application Number
- CN202520829460.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-28
AI Technical Summary
In existing technologies, longer light guide products have poor light uniformity, especially at intersections where they are prone to distorted illumination, causing customer complaints.
The system employs a combined light guide structure. Through the superposition of two light guides, the first and second light guides are respectively set with light-emitting areas and light guide teeth. The light emitted by the light source is reflected in the light guide and evenly illuminates the entire light guide area. Combined with the design of the bracket, cover plate and lens, the uniform distribution of light is achieved.
It achieves uniform light emission over a longer light guide area, avoids uneven light illumination caused by cross light guides, shortens design time, and improves the design independence of the light guide.
Smart Images
Figure CN223953945U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to optical field, concretely relates to a combined light guide structure. BACKGROUND
[0002] In the interior atmosphere lamp, at present, for the longer light guide product, since single light guide cannot optimize the light uniformly, so adopt the form of the cross of multiple light guides to light up. Figure 1 As shown in the light guide structure includes multiple light guides 100, support 200, LED 300 and lens 500, for emitting longer light guide product, adopt 3 light guides, 4 LED 300 cross light up form, under this form, two cross positions 400 are produced, the light uniformity of the illumination of the two cross positions is poor, generally will produce the illumination effect of distortion, causes the complaint of customer.
[0003] Therefore, it is necessary to provide a new technical scheme. UTILITY MODEL CONTENT
[0004] In order to solve the technical problems in the prior art, the utility model discloses a combined light guide structure, which designs the cross light guide into a superimposed light guide effect, avoiding the problem of uneven light irradiation caused by the cross position.
[0005] The utility model provides a combined light guide structure, which comprises a first light guide, a second light guide and a light source.
[0006] Along the length direction of the first light guide, the first light guide comprises a first light emitting area and second light emitting areas located at both ends of the first light emitting area, and the second light emitting areas are distributed with first light guide teeth.
[0007] The second light guide is superimposed on the first light emitting area, and the second light guide is distributed with second light guide teeth.
[0008] The light source is located at one end or both ends of the first light guide and one end or both ends of the second light guide.
[0009] The light emitted by the light source enters the first light guide and the second light guide, part of the light in the first light guide is reflected by the first light guide teeth to light up the second light emitting area, and part of the light in the second light guide is reflected by the second light guide teeth to exit to the first light emitting area, and the first light emitting area is lit up.
[0010] Further, along the length direction of the first light guide, the first light emitting area is close to the middle position of the first light guide, the first light emitting area has a light surface, the second light emitting area has a first light guide tooth surface, and the first light guide teeth are distributed on the first light guide tooth surface.
[0011] The second light guide has a light emitting surface and a second light guide tooth surface opposite to the light emitting surface along the length direction of the second light guide, the light emitting surface is overlapped with the first light emitting area, and the second light guide teeth are distributed on the second light guide tooth surface.
[0012] Further, the length of the light emitting surface is consistent with the length of the light surface, and the width of the light emitting surface is consistent with the width of the light surface.
[0013] Further, the light surface and the first light guide tooth surface are located in the same plane.
[0014] Further, the first light guide is a cylindrical shape, and the longitudinal section of the cylindrical first light guide forms the light surface and the first light guide tooth surface, or the first light guide is a rectangular column or a square column.
[0015] The second light guide is a circular column, and the cylindrical second light guide has two opposite longitudinal sections, one of which forms the light emitting surface, and the other forms the second light guide tooth surface, or the second light guide is a rectangular column or a square column.
[0016] Further, it further comprises a bracket, a cover plate and a lens,
[0017] The bracket has a bottom plate and a side plate connected to one side of the bottom plate.
[0018] The cover plate is arranged on the bottom plate from the other side of the bottom plate, and the bottom plate, the side plate and the cover plate jointly form a long strip containing cavity with an opening on the upper side.
[0019] Along the length direction of the containing cavity, the first light guide and the second light guide are arranged on the bottom plate in turn from top to bottom and contained in the containing cavity.
[0020] The lens is arranged on the opening.
[0021] Further, the bottom plate comprises a first bottom plate and a second bottom plate, the first bottom plate is located at both ends of the second bottom plate, along the length direction of the containing cavity, the second light guide is arranged on the second bottom plate, and the first light guide is arranged on the first bottom plate.
[0022] Further, the plane height of the first bottom plate is greater than the plane height of the second bottom plate.
[0023] Further, a first channel and a second channel which are in communication with the containing cavity extend outward from the lower side of the containing cavity, the first channel is located at both ends of the containing cavity, and the second channel is located adjacent to the first bottom plate and the second bottom plate.
[0024] The two ends of the first light guide have first extensions which are received in a first channel, and the two ends of the second light guide have second extensions which are received in a second channel,
[0025] The light source is directed towards the first and second channels respectively.
[0026] Further, the first extensions are curved, the first channel is shaped to match the shape of the first extensions, the second extensions are curved, and the second channel is shaped to match the shape of the second extensions,
[0027] The light source is a single LED.
[0028] The utility model has the following beneficial effects:
[0029] (1) The combined light guide structure successfully illuminates a long light emitting area with good uniformity, and avoids the defect of poor uniformity of cross light guides.
[0030] (2) The two light guides of the combined light guide structure can be independently designed, and there is no need to consider the matching problem in the design process of cross light guides, which is beneficial to shorten the design time of the light guide.
[0031] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0032] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.
[0033] Figure 1 It is a structure schematic diagram of long light guide light emitting in the prior art;
[0034] Figure 2 It is an exploded schematic diagram of the combined light guide structure in one embodiment of the utility model;
[0035] Figure 3 It is a superimposed schematic diagram of the first light guide and the second light guide of the combined light guide structure of the utility model;
[0036] Figure 4 It is a cross-sectional schematic diagram of the combined light guide structure in one embodiment of the utility model;
[0037] Figure 5 for Figure 3 partial enlarged schematic view;
[0038] Figure 6 for the structure schematic view of the combined light guide structure in another embodiment of the utility model;
[0039] Figure 7 for the structure schematic view of the combined light guide structure in another embodiment of the utility model.
[0040] Wherein, 1-first light guide, 2-second light guide, 3-light source, 4-bracket, 5-cover plate, 6-lens, 11-first light guide tooth surface, 111-first light guide tooth, 12-light surface, 21-emitting surface, 22-second light guide tooth surface, 221-second light guide tooth, 41-bottom plate, 42-side plate, 7-housing cavity, 411-first bottom plate, 412-second bottom plate, 13-first extension, 23-second extension, 71-first channel, 72-second channel. DETAILED DESCRIPTION
[0041] The embodiments of the utility model are described in detail below, the example of the embodiment is shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.
[0042] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation of the utility model. In the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited.
[0043] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0044] Please refer to Figures 2 to 7 ,Figure 2 isomeric view of the combined light guide structure in one embodiment of the present utility model; Figure 3 is an isomeric view of the first light guide and the second light guide of the combined light guide structure of the present utility model; Figure 4 is a cross-sectional isomeric view of the combined light guide structure in one embodiment of the present utility model; Figure 5 is Figure 3 is an isomeric view of the middle part; Figure 6 is a structural isomeric view of the combined light guide structure in another embodiment of the present utility model; Figure 7 is a structural isomeric view of the combined light guide structure in still another embodiment of the present utility model.
[0045] As Figures 2 to 5 indicated, the combined light guide structure of the present utility model comprises a first light guide 1, a second light guide 2 and a light source 3. The first light guide 1 and the second light guide 2 are both long strips. The length of the first light guide 1 is greater than the length of the second light guide 2.
[0046] Along the length direction of the first light guide 1, the first light guide 1 comprises a first light emitting area A and second light emitting areas B at both ends of the first light emitting area A. The first light emitting area A is close to the middle position of the first light guide 1. The first light emitting area A has a light surface 12, and the second light emitting areas B have first light guide tooth surfaces 11. The first light guide tooth surfaces 11 are distributed with first light guide teeth 111.
[0047] Along the length direction of the second light guide 2, the second light guide 2 has a light emitting surface 21 and a second light guide tooth surface 22 opposite to the light emitting surface 21. The light emitting surface 21 is superimposed with the first light emitting area A. The second light guide tooth surface 22 is distributed with second light guide teeth 221.
[0048] The light source 3 is located at one end or both ends of the first light guide 1 and one end or both ends of the second light guide 2. In the present utility model, the light guide-in light form is not limited, which can be two-end light-in or single-side light-in (such as Figure 6 ). Further, the light source 3 is a single LED.
[0049] Further, the light surface 12 and the first light guide tooth surface 11 are located in the same plane. The sum of the length of the light surface 12 and the first light guide tooth surface 11 is consistent with the length of the first light guide 1. The length of the light emitting surface 21 is consistent with the length of the light surface 12, and the width of the light emitting surface 21 is consistent with the width of the light surface 12. This can ensure that the first light emitting area without light guide teeth on the first light guide can be completely illuminated by the second light guide, so that the light emitting brightness of the first light emitting area and the light emitting brightness of the second light emitting area are consistent, thereby realizing the effect of uniform light emitting of the whole first light guide.
[0050] Please continue to refer toFigure 2 and Figure 4 The combined light guide structure further comprises a bracket 4, a cover plate 5 and a lens 6.
[0051] The bracket 4 has a bottom plate 41 and a side plate 42 connected to one side of the bottom plate 41.
[0052] The cover plate 5 is arranged on the bottom plate 41 from the other side of the bottom plate 41, and the bottom plate 41, the side plate 42 and the cover plate 5 jointly form an elongated accommodating cavity 7 with an opening on the upper side.
[0053] Along the length direction of the accommodating cavity 7, the first light guide 1 and the second light guide 2 are sequentially arranged on the bottom plate 41 from top to bottom and accommodated in the accommodating cavity 7; and the lens 6 is arranged on the opening.
[0054] Further, the bottom plate 41 comprises a first bottom plate 411 and a second bottom plate 412, the first bottom plate 411 is located at both ends of the second bottom plate 412, along the length direction of the accommodating cavity 7, the second light guide 2 is arranged on the second bottom plate 412, and the first light guide 1 is arranged on the first bottom plate 411. The plane height of the first bottom plate 411 is greater than the plane height of the second bottom plate 412.
[0055] In one embodiment, a first channel 71 and a second channel 72 extend outwardly from the lower side of the accommodating cavity 7, the first channel 71 and the second channel 72 are both in communication with the accommodating cavity 7, the first channel 71 is located at both ends of the accommodating cavity 7, and the second channel 72 is located adjacent to the first bottom plate 411 and the second bottom plate 412. Both ends of the first light guide 1 have a first extension 13, the first extension 13 corresponds to the first channel 71 and is accommodated in the first channel 71, and the shape of the first channel 71 matches the shape of the first extension 13; both ends of the second light guide 2 have a second extension 23, the second extension 23 corresponds to the second channel 72 and is accommodated in the second channel, and the shape of the second channel 72 matches the shape of the second extension 23. The light source 3 is respectively directed towards the first channel 71 and the second channel 72. Further, the first extension 13 is curved, and the second extension 23 is curved. It should be noted that the two ends of the first light guide and the second light guide of the utility model can be designed to be curved according to the needs of the light emitting area, and the first curved portion and the second curved portion are curved towards the same side, which is conducive to the installation of the light source and the utilization of space.
[0056] The light emitted by the light source at two ends or one end of the first light guide enters the first light guide, part of the light in the first light guide is reflected by the first light guide teeth to light up the second light emitting area, meanwhile, the light emitted by the light source at two ends or one end of the second light guide enters the second light guide, part of the light entering the second light guide is reflected by the second light guide teeth to exit from the light surface of the first light emitting area, the light enters the first light emitting area through the light surface to light up the first light emitting area, and the whole first light guide is uniformly lighted up.
[0057] Please refer to Figure 4 In the embodiment, the first light guide 1 is a cylindrical column, the longitudinal section of the cylindrical first light guide forms a light surface and a first light guide tooth surface 11, and the second light guide 2 is a circular column, the circular cylindrical second light guide has two opposite longitudinal sections, one of which forms a light emitting surface 21, and the other forms a second light guide tooth surface 22. Figure 7 In another embodiment, as shown in the figure, the first light guide 1 is also a square column, one surface of the square column first light guide serves as the light surface and the first light guide tooth surface 11 of the first light guide, and the second light guide is a square column, the light emitting surface 21 and the second light guide tooth surface 22 of the second light guide are two opposite surfaces of the square column second light guide.
[0058] The long light guide, i.e., the first light guide, is divided into a first light emitting area and a second light emitting area (as shown in the figure), and the second light guide is a short light guide. Figure 3 The first light emitting area is a short light guide light emitting area, the second light emitting area is a long light guide light emitting area, the first light guide has light guide teeth only in the second light emitting area which does not coincide with the second light guide for lighting function, and the coincident area with the second light guide is a smooth plane without light guide teeth, so only the second light guide plays a lighting role at the coincident position of the first light guide and the second light guide (as shown in the figure). Figure 5 The long light guide and the short light guide are coupled, and the distribution of the light guide teeth realizes uniform lighting of the long light emitting area, and the defect of twisted lighting of the cross light guide is avoided.
[0059] The long light emitting area is successfully lighted up by the coupling of the two light guides, and the uniformity is good, and the defect of poor uniformity of the cross light guide is avoided.
[0060] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, a person skilled in the art can combine and integrate different embodiments or examples described in the present specification.
[0061] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present application.
Claims
1. A combined light guide structure, characterized in that, It comprises a first light guide (1), a second light guide (2) and a light source (3), Along the length direction of the first light guide, the first light guide comprises a first light emitting area and second light emitting areas located at both ends of the first light emitting area, and the second light emitting areas are distributed with first light guide teeth (111), The second light guide (2) is superimposed on the first light emitting area, and the second light guide is distributed with second light guide teeth (221), The light source (3) is located at one end or both ends of the first light guide and one end or both ends of the second light guide, The light emitted by the light source enters the first light guide and the second light guide, part of the light in the first light guide is reflected by the first light guide teeth to light up the second light emitting area, and part of the light in the second light guide is reflected by the second light guide teeth to exit to the first light emitting area, and the first light emitting area is lighted up.
2. The combined light guide structure according to claim 1, wherein, Along the length direction of the first light guide, the first light emitting area is close to the middle position of the first light guide, the first light emitting area has a light surface (12), and the second light emitting area has a first light guide tooth surface (11), and the first light guide teeth (111) are distributed on the first light guide tooth surface (11), Along the length direction of the second light guide, the second light guide (2) has a light emitting surface (21) and a second light guide tooth surface (22) opposite to the light emitting surface (21), the light emitting surface (21) is superimposed with the first light emitting area, and the second light guide teeth (221) are distributed on the second light guide tooth surface (22).
3. The combined light guide structure according to claim 2, wherein, The length of the light emitting surface (21) is consistent with the length of the light surface (12), and the width of the light emitting surface (21) is consistent with the width of the light surface (12).
4. The combined light guide structure according to claim 2, wherein, The light surface (12) and the first light guide tooth surface (11) are located in the same plane.
5. The combined light guide structure according to claim 2, wherein, The first light guide is a cylindrical shape, and the longitudinal section of the cylindrical first light guide forms the light surface and the first light guide tooth surface, or the first light guide is a rectangular column or a square column; The second light guide is a circular column, and the cylindrical second light guide has two opposite longitudinal sections, one of which forms the light emitting surface, and the other forms the second light guide tooth surface, or the second light guide is a rectangular column or a square column.
6. The combined light guide structure according to claim 1, further comprising a bracket (4), a cover plate (5) and a lens (6), The bracket has a bottom plate (41) and a side plate (42) connected to one side of the bottom plate; The cover plate is provided on the bottom plate from the other side of the bottom plate, and the bottom plate, the side plate and the cover plate jointly form a long strip containing cavity (7) with an opening on the upper side; Along the length direction of the containing cavity, the first light guide and the second light guide are superimposed and erected on the bottom plate in sequence from top to bottom and contained in the containing cavity; The lens (6) is provided on the opening.
7. The combined light guide structure according to claim 6, wherein, The bottom plate (41) comprises a first bottom plate (411) and a second bottom plate (412), the first bottom plate (411) is located at both ends of the second bottom plate (412), along the length direction of the accommodating cavity, the second light guide (2) is arranged on the second bottom plate (412), and the first light guide (1) is arranged on the first bottom plate (411).
8. The combined light guide structure according to claim 7, characterized in that, The plane height of the first bottom plate (411) is greater than the plane height of the second bottom plate (412).
9. The combined light guide structure according to claim 7, characterized in that, The first channel (71) and the second channel (72) which are in communication with the accommodating cavity extend outward from the lower side of the accommodating cavity (7), the first channel (71) is located at both ends of the accommodating cavity, and the second channel (72) is located adjacent to the first bottom plate and the second bottom plate, Both ends of the first light guide have a first extension (13), the first extension (13) is accommodated in the first channel, both ends of the second light guide have a second extension (23), and the second extension (23) is accommodated in the second channel, The light source (3) is respectively towards the first channel and the second channel.
10. The combined light guide structure according to claim 9, characterized in that, The first extension (13) is curved, the shape of the first channel is matched with the shape of the first extension, the second extension (23) is curved, and the shape of the second channel is matched with the shape of the second extension, The light source (3) is a single LED.