CN219995148U - Light guide assembly, lighting device for vehicle and vehicle - Google Patents
Light guide assembly, lighting device for vehicle and vehicle Download PDFInfo
- Publication number
- CN219995148U CN219995148U CN202223553667.3U CN202223553667U CN219995148U CN 219995148 U CN219995148 U CN 219995148U CN 202223553667 U CN202223553667 U CN 202223553667U CN 219995148 U CN219995148 U CN 219995148U
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- China
- Prior art keywords
- light
- light guide
- light guiding
- corner
- guide assembly
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- 230000000694 effects Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A light guide assembly is disclosed, comprising an elongate body comprising first and second light guide elements independent of each other, the body having a light exit section for directing light from a light source outwardly towards a target, the light exit section having a corner where one end of the first light guide element and one end of the second light guide element butt together to form the corner. A lighting device for a vehicle comprising the light guide assembly and a vehicle are also disclosed.
Description
Technical Field
The present utility model relates to the field of illumination, and more particularly, to a light guide assembly, and an illumination device and a vehicle having the same.
Background
Light emitting diodes, LEDs, are increasingly used in conjunction with light guides in vehicle lamps to exhibit a desired light-emitting effect, for example in signal lamps. In this case, the course of the light guide itself is generally determined by the desired light output shaping. However, if an abrupt change occurs in the course of the light guide, for example having a corner of less than 90 °, in which case the corner may alter or destroy the reflection of light in the light guide (e.g. total reflection), resulting in light exiting or leaking in undesired directions from or near the curved position of the light guide, the lighting effect may be deteriorated, such as the presence of a dark area. Thus, the prior art light guides are not capable of achieving a uniform lighting effect while meeting desired styling requirements (e.g., having corners less than 90 °).
Disclosure of Invention
The present disclosure is directed to solving at least one of the above-mentioned problems and disadvantages of the prior art.
According to one aspect of the present disclosure, there is provided a light guide assembly, wherein the light guide assembly comprises an elongate body comprising a first light guide element and a second light guide element independent of each other, the body having a light exit section for guiding light from a light source outwards towards a target, the light exit section having a corner at which one end of the first light guide element and one end of the second light guide element butt together to form the corner.
According to an exemplary embodiment of the present disclosure, the angle of the corner is less than or equal to 90 degrees.
According to an exemplary embodiment of the present disclosure, the butt end of at least one of the first light guiding element and the second light guiding element comprises an arc-shaped section.
According to an exemplary embodiment of the present disclosure, the first and second light guiding elements each define a light entry segment near an end opposite the butt end for receiving light from a light source such that the received light propagates within the body to the light exit segment.
According to an exemplary embodiment of the present disclosure, the first light guiding element and the second light guiding element comprise at least one tubular or rod-shaped light guiding sub-element, respectively, at the light exit section.
According to an exemplary embodiment of the present disclosure, at least one of the first light guiding element and the second light guiding element comprises a plurality of tubular or rod-shaped light guiding sub-elements arranged side by side, the tubular or rod-shaped light guiding sub-elements of the plurality of tubular or rod-shaped light guiding sub-elements being located inside the corner having a smaller cross-sectional dimension than the tubular or rod-shaped light guiding sub-elements being located outside the corner.
According to an exemplary embodiment of the present disclosure, at least one of the first light guiding element and the second light guiding element comprises a plurality of tubular or rod-shaped light guiding sub-elements arranged side by side, which converge into a single light guiding sub-element at the light entrance section.
According to an exemplary embodiment of the present disclosure, the first light guiding element and the second light guiding element each comprise a light decoupling element at the light exit section, which light decoupling element allows light rays to exit transversely to the plane of extension of the light exit section.
According to another aspect of the present disclosure, there is also provided a lighting device for a vehicle, wherein the lighting device comprises a light source and a light guide assembly as described above.
According to yet another aspect of the present disclosure, there is also provided a vehicle, wherein the vehicle comprises a lighting device for a vehicle as described above.
Other objects and advantages of the present utility model will become apparent from the following description of the utility model with reference to the accompanying drawings, which provide a thorough understanding of the present utility model.
Drawings
Fig. 1 illustrates a schematic structure of a light guide assembly according to an exemplary embodiment of the present disclosure.
Fig. 2 shows a schematic view of another angle of the light guide assembly shown in fig. 1.
Fig. 3 shows an enlarged view of a portion of the light guide assembly shown in fig. 2.
Detailed Description
The technical scheme of the present disclosure is further specifically described below by way of examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present disclosure with reference to the drawings is intended to illustrate the general inventive concept of the present disclosure and should not be taken as limiting the disclosure.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the manner so as to simplify the drawings.
Fig. 1 and 2 illustrate a schematic structure of a light guide assembly according to an exemplary embodiment of the present disclosure. As shown in fig. 1 and 2, the light guide assembly includes an elongated body 100 having opposite first and second ends 16, 17 and light-emitting sections extending between the first and second ends 16, 17, the light-emitting sections 13, 14 for directing light from a light source out in a target direction to provide a desired lighting configuration, illumination or signaling function. The main body 100 comprises a first light guiding element 11 and a second light guiding element 12 which are independent of each other, wherein the light exit section of the main body 100 comprises the light exit section 13 of the first light guiding element 11 and the light exit section 14 of the second light guiding element 12. The light-emitting section of the body 100 has a corner 20 where one end of the first light guiding element 11 and one end of the second light guiding element 12 butt together to form the corner 20.
The light guide assembly according to the present utility model can prevent a large amount of light leakage from occurring at the corner 20 by dividing the integrally formed elongated body 100 of the prior art into the first light guide member 11 and the second light guide member 12 which are independent of each other, thereby preventing a dark area from occurring in the lighted appearance due to a relatively serious light leakage when light travels to the corner 20. In addition, when the first light guiding element 11 and the second light guiding element 12 are butted together at the corner 20, light exiting either one of the first light guiding element 11 and the second light guiding element 12 may enter the other, so that the lighting effect is better.
In one exemplary embodiment, the angle of the corner 20 is less than 90 degrees as shown in fig. 1 and 2, however, it will be understood by those skilled in the art that in other embodiments of the present disclosure, the angle of the corner 20 may be equal to 90 degrees, and in the case where such a corner is less than or equal to 90 degrees, a relatively severe light leakage may occur when light travels to the corner 20, resulting in a dark area in the lit appearance, which may be largely eliminated with embodiments of the present disclosure.
In an exemplary embodiment, as shown in fig. 1 and 2, the abutting end of the second light guiding element 12 includes an arc-shaped section 15, which may make the transition of the light emitting section 14 of the second light guiding element 12 through the arc-shaped section 15 more gradual, and may also make the light exiting either of the first light guiding element 11 and the second light guiding element 12 enter more into the other when the first light guiding element 11 and the second light guiding element 12 are abutted together. It should be noted that, in other embodiments, the abutting end of the first light guiding member 11 may also include an arc-shaped section, or the abutting ends of the first light guiding member 11 and the second light guiding member 12 may each include an arc-shaped section.
In an exemplary embodiment, as shown in fig. 1 and 2, the first light guiding element 11 defines a light entry segment 18 near an end 16 opposite the butt end, the light entry segment 18 for receiving light from a light source such that the received light propagates within the body 100 to the light exit segment 13 of the first light guiding element 11. Similarly, the second light guiding element 12 defines a light entry section 19 near the end 17 opposite the butt end, the light entry section 19 for receiving light from another light source such that the received light propagates within the body 100 to the light exit section 14 of the second light guiding element 12.
Fig. 3 shows a close-up view of the light guide assembly at a corner 20, showing the first light guide element 11 and the second light guide element 12 butted together at the corner 20 for a clearer display. It can be seen that one end of the first photoconductive element 11 and one end of the second photoconductive element 12 are butted together to form the corner 20.
In an exemplary embodiment, as shown in fig. 3, the first light-guiding element 11 comprises, in its light-emitting section 13, three tubular or rod-shaped light-guiding elements 1A, 2A, 3A arranged side by side, such as light pipes or light-guiding rods. The second light-guiding element 12 comprises, in its light-emitting section 14, three tubular or rod-shaped light-guiding elements 1B, 2B, 3B arranged side by side, such as light pipes or light-guiding rods. The three tubular or rod-shaped light-guiding elements 1A, 2A, 3A of the first light-guiding element 11 are respectively butted together in one-to-one correspondence with the three tubular or rod-shaped light-guiding elements 1B, 2B, 3B of the second light-guiding element 12. In an embodiment not shown, the first light guiding element 11 may also comprise one, two or other number of tubular or rod-shaped light guiding sub-elements in its light exit section 13. Similarly, the second light guiding member 12 may also comprise one, two or other number of tubular or rod-shaped light guiding sub-members in its light exit section 14.
In the exemplary embodiment shown in fig. 3, the cross-sectional dimensions of the tubular or rod-shaped light guiding sub-element located inside the corner 20 are smaller than the cross-sectional dimensions of the tubular or rod-shaped light guiding sub-element located outside the corner 20, i.e. the tubular or rod-shaped light guiding sub-element 1A;1B are smaller in cross-sectional dimension than the tubular or rod-shaped light guiding sub-element 2A;2B and a tubular or rod-shaped light guide sub-element 2A;2B are smaller in cross-sectional dimension than the tubular or rod-shaped light guiding sub-element 3A; 3B. Since the corner inner side angle is smaller than the corner outer side angle, light leakage is more likely to occur inside the corner and the area of the dark region can be reduced by reducing the size of the corresponding light guide sub-element by using the embodiments in the present disclosure, thereby improving the lighting appearance.
In an exemplary embodiment, as shown in fig. 1 and 2, the three tubular or rod-shaped light guiding sub-elements 1A, 2A, 3A of the first light guiding element 11 are converged into a single light guiding sub-element at their light entry sections 18 to save light sources and simplify the construction. Similarly, the three tubular or rod-shaped light guiding sub-elements 1B, 2B, 3B of the second light guiding element 12 are converged into a single light guiding sub-element at their light entry sections 19 to save light sources and simplify the construction.
In an exemplary embodiment, as shown in fig. 1 and 2, the first light guiding element 11 comprises at its light-emitting section 13 a light-decoupling element which causes light rays to exit transversely to the plane of extension of the light-emitting section 13 of the first light guiding element 11. The light decoupling element may for example be arranged at a rear side of the light exit section 13 of the first light guiding element 11 opposite to the light exit surface for causing at least a part of the light propagating inside the light exit section 13 of the first light guiding element 11 to exit from the light exit surface. The second light-guiding element 12 comprises at its light-emitting section 14 a light-decoupling element which causes light rays to exit transversely to the plane of extension of the light-emitting section 14 of the second light-guiding element 12. The light decoupling element may for example be arranged at a rear side of the light exit section 14 of the second light guiding element 12 opposite to the light exit surface for causing at least a part of the light propagating inside the light exit section 14 of the second light guiding element 12 to exit from the light exit surface.
According to another aspect of the present disclosure, there is also provided a lighting device for a vehicle, the lighting device comprising a light source and a light guide assembly as described above. Each light guiding element of the light guiding assembly is provided with its own light source.
According to yet another aspect of the present disclosure, there is also provided a vehicle comprising the lighting device for a vehicle as described above.
Those skilled in the art will appreciate that the embodiments described above are exemplary and that modifications may be made by those skilled in the art, and that the structures described in the various embodiments may be freely combined without conflict in terms of structure or principle.
Although the present utility model has been described with reference to the accompanying drawings, the examples disclosed in the drawings are intended to illustrate preferred embodiments of the utility model and are not to be construed as limiting the utility model.
Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.
It should be noted that the word "comprising" does not exclude other elements or steps, and that the word "a" or "an" does not exclude a plurality. In addition, any element numbers of the claims should not be construed as limiting the scope of the utility model.
Claims (10)
1. A light guide assembly, characterized in that the light guide assembly comprises an elongated body (10), the body (10) comprising a first light guiding element (11) and a second light guiding element (12) independent of each other, the body (10) having a light exit section (13, 14) for guiding light from a light source outwards towards a target direction, the light exit section having a corner (20), at which corner (20) one end of the first light guiding element (11) and one end of the second light guiding element (12) are butted together to form the corner (20).
2. A light guide assembly according to claim 1, characterized in that the angle of the corner (20) is less than or equal to 90 degrees.
3. A light guide assembly according to claim 1, wherein the butt end of at least one of the first light guiding element (11) and the second light guiding element (12) comprises an arc-shaped section (15).
4. A light guide assembly as claimed in claim 1, characterized in that the first light guide element (11) and the second light guide element (12) define light entry sections (18, 19) near an end (16, 17) opposite the butt end, respectively, for receiving light from a light source such that the received light propagates within the body to the light exit sections (13, 14).
5. A light guide assembly according to claim 4, characterized in that the first light guide element (11) and the second light guide element (12) comprise at least one tubular or rod-shaped light guide sub-element (1A, 2A, 3a;1B, 2B, 3B), respectively, in the light exit section (13, 14).
6. A light guiding assembly according to claim 5, characterized in that at least one of the first light guiding element (11) and the second light guiding element (12) comprises a plurality of tubular or rod-shaped light guiding sub-elements (1A, 2A, 3a;1B, 2B, 3B) arranged side by side, the tubular or rod-shaped light guiding sub-elements (1A, 2A, 3a;1B, 2B, 3B) of the plurality of tubular or rod-shaped light guiding sub-elements being located inside the corner having a smaller cross-sectional dimension than the tubular or rod-shaped light guiding sub-elements being located outside the corner.
7. A light guide assembly according to claim 5, characterized in that at least one of the first light guiding element (11) and the second light guiding element (12) comprises a plurality of tubular or rod-shaped light guiding sub-elements (1A, 2A, 3a;1B, 2B, 3B) arranged side by side, the plurality of tubular or rod-shaped light guiding sub-elements (1A, 2A, 3a;1B, 2B, 3B) converging into a single light guiding sub-element at the light entry section (18, 19).
8. A light guide assembly according to any of claims 1-7, characterized in that the first light guide element (11) and the second light guide element (12) each comprise a light decoupling element at the light exit section (13, 14) which light decoupling element causes light rays to exit transversely to the plane of extension of the light exit section.
9. A lighting device for a vehicle, characterized in that the lighting device comprises a light source and a light guide assembly according to any one of claims 1-8.
10. A vehicle, characterized in that the vehicle comprises the lighting device for a vehicle according to claim 9.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223553667.3U CN219995148U (en) | 2022-12-28 | 2022-12-28 | Light guide assembly, lighting device for vehicle and vehicle |
PCT/CN2023/140524 WO2024140398A1 (en) | 2022-12-28 | 2023-12-21 | Light guide assembly for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223553667.3U CN219995148U (en) | 2022-12-28 | 2022-12-28 | Light guide assembly, lighting device for vehicle and vehicle |
Publications (1)
Publication Number | Publication Date |
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CN219995148U true CN219995148U (en) | 2023-11-10 |
Family
ID=88616105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202223553667.3U Active CN219995148U (en) | 2022-12-28 | 2022-12-28 | Light guide assembly, lighting device for vehicle and vehicle |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN219995148U (en) |
WO (1) | WO2024140398A1 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7695179B2 (en) * | 2007-03-16 | 2010-04-13 | Visteon Global Technologies, Inc. | Illuminating device |
US8870423B2 (en) * | 2011-05-19 | 2014-10-28 | Stanley Electric Co., Ltd. | Vehicle decorative lighting device and vehicle lamp |
CN104235721B (en) * | 2013-06-20 | 2017-12-26 | 汽车照明罗伊特林根有限公司 | The lighting device of motor vehicle |
US10240746B2 (en) * | 2016-07-14 | 2019-03-26 | Valeo North America, Inc. | Fiber optic light panel with homogeneous light output |
CZ2017773A3 (en) * | 2017-12-01 | 2019-06-12 | Varroc Lighting Systems, s.r.o. | Lighting, in particular a signal light for motor vehicles |
JP7122197B2 (en) * | 2018-08-31 | 2022-08-19 | 市光工業株式会社 | Vehicle light guide and vehicle lamp |
GB2585688A (en) * | 2019-07-11 | 2021-01-20 | Dyson Technology Ltd | Vehicle lamps |
DE102020114257A1 (en) * | 2020-05-28 | 2021-12-02 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle |
DE102021109319A1 (en) * | 2021-04-14 | 2022-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Exterior lamp for a motor vehicle |
-
2022
- 2022-12-28 CN CN202223553667.3U patent/CN219995148U/en active Active
-
2023
- 2023-12-21 WO PCT/CN2023/140524 patent/WO2024140398A1/en unknown
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Publication number | Publication date |
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WO2024140398A1 (en) | 2024-07-04 |
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