CN217235478U - Thick-walled light guide, lighting device and motor vehicle - Google Patents
Thick-walled light guide, lighting device and motor vehicle Download PDFInfo
- Publication number
- CN217235478U CN217235478U CN202122636669.8U CN202122636669U CN217235478U CN 217235478 U CN217235478 U CN 217235478U CN 202122636669 U CN202122636669 U CN 202122636669U CN 217235478 U CN217235478 U CN 217235478U
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- Prior art keywords
- light guide
- thick
- light
- walled
- coupler
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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
- F21S43/10—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
- F21S43/15—Strips of light sources
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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
- F21S43/239—Light guides characterised by the shape of the light guide plate-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
- F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
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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
- F21S43/249—Light guides with two or more light sources being coupled into the light guide
Abstract
The utility model relates to a thick wall light guide (100), thick wall light guide (100) includes first light guide (101) and second light guide (102), and first light guide (101) and second light guide (102) become a certain angle and connect, and first light guide (101) and second light guide (102) include at least one coupler (103) respectively, be provided with auxiliary reflecting surface (104) on at least one in first light guide (101) and second light guide (102). The utility model discloses still relate to a lighting device and motor vehicle.
Description
Technical Field
The utility model relates to a car light technical field specifically, relates to a thick wall light guide, lighting device and motor vehicles.
Background
In automotive lighting, thick-walled light guides are widely used because they can save costs and have good lighting effects.
However, for the C-shaped or U-shaped thick-walled light guide, due to space limitations, when a plurality of PCBs at different angles are required to be used, the light-emitting directions of the couplers are inconsistent, and the connection or transition region of the couplers generally cannot have a good lighting effect, thereby affecting the optical effect finally formed by the vehicle lamp.
SUMMERY OF THE UTILITY MODEL
It is therefore an object of the present invention to provide a thick-walled light guide, which is capable of at least partially solving the above mentioned technical problem.
According to the utility model discloses a thick wall light guide, thick wall light guide includes first light guide and second light guide, and first light guide and second light guide are connected at an angle, and first light guide and second light guide include at least one coupler respectively, first light guide with second light guide connection is provided with supplementary plane of reflection on at least one in the second light guide.
According to a non-limiting embodiment of the present invention, the coupler is arranged such that when a light source is positioned at a predetermined point of the coupler, light rays from the light source entering the thick-walled light guide from the predetermined point through the input face of the coupler are refracted in mutually parallel planes.
According to a non-limiting embodiment of the present invention, the auxiliary reflective surface is a step-like structure recessed into the thick-walled light guide with respect to its corresponding light guide plane by the coupler of the first light guide and/or the second light guide.
According to a non-limiting embodiment of the present invention, the surface of the auxiliary reflective surface further includes a step-shaped light guide surface.
According to a non-limiting embodiment of the present invention, each coupler corresponds to one of the light sources, respectively.
According to a non-limiting embodiment of the present invention, the light source is a light emitting diode.
According to a non-limiting embodiment of the present invention, the light source corresponding to each coupler of the first light guide is formed on a first PCB, and the light source corresponding to each coupler of the second light guide is formed on a second PCB.
According to a non-limiting embodiment of the present invention, the thick-walled light guide is integrally formed.
The utility model also provides a lighting device, lighting device includes according to preceding arbitrary the thick wall light guide.
The utility model also provides a motor vehicle, motor vehicle includes according to preceding lighting device.
Due to the adoption of the technical scheme, the utility model discloses a thick wall light guide has following beneficial effect: the utility model discloses a thick wall light guide can also realize good optical effect in transition region, finally obtains the lighting effect of expectation, but also can make arranging of light source have more the flexibility.
Drawings
The invention will be further elucidated with the aid of the drawing, in which,
fig. 1 is a front view of a thick-walled light guide according to the present invention;
fig. 2 is a side view of a thick-walled light guide according to the present invention;
FIG. 3 is a cross-sectional view of a side of a second light guide;
fig. 4 is a schematic view of a thick-walled light guide according to the invention when the light source is arranged on a PCB board;
fig. 5 is an optical path diagram at a first light guide of a thick-walled light guide according to the present invention;
fig. 6 is an optical path diagram at a second light guide of a thick-walled light guide according to the present invention;
fig. 7 is an optical diagram of a thick-walled light guide at a transition region according to the present invention.
Detailed Description
Embodiments of the present invention are exemplarily described below. As those skilled in the art will appreciate, the illustrated embodiments may be modified in various different ways without departing from the inventive concept. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive. In the following, the same reference numbers generally indicate functionally identical or similar elements.
Fig. 1 and 2 schematically show a front view and a side view, respectively, of a thick-walled light guide 100 of the present invention. The thick-walled light guide 100 is generally U-shaped or C-shaped and has a lamellar structure.
In one embodiment, a thick-walled light guide 100, comprising a first light guide 101 and a second light guide 102, the first light guide 101 and the second light guide 102 being connected at an angle, the first light guide 101 and the second light guide 102 each comprising at least one coupler 103.
The angle between the first light guide 101 and the second light guide 102 may be set according to the actual light shaping needs, and no specific angle is limited here. In a preferred embodiment, the first light guide 101 and the second light guide 102 are connected substantially perpendicularly.
Each coupler 103 corresponds to one of the light sources 106.
The input faces 105 of the coupler 103 are arranged such that, when a light source 106 is positioned at a predetermined point of said coupler 103, for each input face 105, rays from said light source 106 entering said thick-walled light guide 100 from said predetermined point through said input face 105 are refracted in mutually parallel planes.
The light path at the coupler 103 of the first light guide 101 is shown in fig. 5. Light emitted from the light source 106 corresponding to the coupler 103 is incident through the input surface 105. These rays are refracted by the entrance face 105 and positioned toward the reflecting face 1031 of the coupler 103. Thereafter, the reflecting surface 1031 reflects the light received thereby and emits the light in the final light emitting direction.
In an alternative example, the reflective surface 1031 generally has a shape that is parabolic or approximately parabolic in profile.
The second light guide 102 has a secondary reflective surface 104. Fig. 3 is a cross-sectional view of the side of the second light guide, said auxiliary reflective surface 104 being a step-like structure of the coupler 103 of the second light guide 102 recessed inside the thick-walled light guide 101 with respect to the plane of the second light guide 102, as shown in fig. 3. The auxiliary reflective surface 104 is arranged to ensure a lighting effect at the second light guide 102 and at the area where the first light guide 101 and the second light guide 102 are connected, i.e. the transition area.
In an alternative example, the surface of the auxiliary reflective surface 104 further includes a stepped light guiding surface 107.
The light path at the coupler 103 of the second light guide 102 is shown in fig. 6. Light emitted by the light source 106 corresponding to the coupler 103 of the second light guide 102 is incident via its input face 105. These rays are refracted by the entrance face 105 and positioned towards the reflective surface 1031 of the coupler 103. The reflecting surface 1031 then reflects the light it receives. Since the second light guide 102 has the auxiliary reflection surface 104 between the coupler 103 and the light guide plane, the light reflected by the reflection surface 1031 is incident on the auxiliary reflection surface 104, the light reflected at the auxiliary reflection surface 104 is received by the light guide surface 107, is reflected again at the light guide surface 107, and is emitted in the final light emitting direction. The light direction in which the light rays exit and the light rays exiting at the first light guide 101 are located on planes parallel to each other.
According to a preferred embodiment of the present invention, the reflection at the reflection surface 1031, the auxiliary reflection surface 104 and the light guide surface 107 are preferably total reflection.
According to an example of the present invention, the auxiliary reflective surface 104 is preferably a total reflective surface, which may have a substantially planar profile.
Fig. 7 is an optical diagram of a thick-walled light guide at a transition region according to the present invention.
The couplers of the first light guides 101 adjacent to the second light guide 102 receive light rays emitted by their corresponding light sources 106, incident via their input faces 105. The light incident on the input surface 105 will reach the reflection surface 1031 after being refracted by the input surface, and reach the light exit surface corresponding to the transition region after being reflected by the reflection surface 1031.
The couplers of the second light guides 102 adjacent to the first light guide 101 receive light rays emitted by their corresponding light sources 106, incident via their input faces 105. The light incident on the input surface 105 is refracted by the input surface, reaches the reflection surface 1031, is reflected by the reflection surface 1031, reaches the light guide surface 107 on the upper surface of the auxiliary reflection surface 104, is received by the light guide surface 107, is reflected again on the light guide surface 107, and finally reaches the light exit surface corresponding to the transition region.
Since the light emitted from the light-emitting surface of the transition region is the superposition of the light emitted from the adjacent couplers of the first light guide 101 and the second light guide 102, the light-emitting effect at the transition region can be effectively improved, and the desired brightness can be obtained.
In addition, as shown in fig. 1 and 2, the light emitting surface 110 has a tooth structure, and the light type can meet the requirements of the lighting regulations through the design of the tooth structure.
In a preferred example, the thick-walled light guide 100 is integrally formed, preferably by molding a transparent plastic material, such as PMMA or polycarbonate, to simplify the manufacturing process and save costs.
In an alternative example, the light source 106 is a light emitting diode. The light emitting diodes are preferably formed on a PCB board.
As shown in fig. 4, said light source 106 for each coupler 103 of said first light guide 101 is formed on a first PCB board 108 and said light source 106 for each coupler 103 of the second light guide 102 is formed on a second PCB board 109. Because the utility model discloses the structure setting of well thick wall light guide, the transition region of first light guide 101 and second light guide 102 also can have good effect of lighting. The first PCB 108 and the second PCB 109 can be disposed on different planes, providing higher flexibility for the design of the car light, and ensuring the final optical effect.
The above example illustrates the present invention by taking the example of the secondary reflecting surface 104 at the second light guide 102. In fact, the auxiliary reflective surface 104 may be disposed on the first light guide 101, or may be disposed on both the first light guide 101 and the second light guide 102, according to the actual requirement. That is, when the PCB board and the thick-walled light guide are at non-perpendicular angles, the auxiliary reflective surface 4 can be arranged to guide the light to the required light-emitting surface.
According to the utility model discloses a thick wall light guide is applicable to motor vehicle's illumination and signal indication device, like tail lamp, signal lamp etc..
According to the utility model discloses a thick wall light guide has even effect of lighting on the whole, and transition region also realizes good optical effect for arranging of light source has more the flexibility.
The utility model also provides a lighting device, lighting device includes aforementioned thick wall light guide 100.
In addition, the utility model also provides a motor vehicle, motor vehicle includes aforementioned lighting device.
The lighting device or motor vehicle according to the present invention has at least the advantageous effects brought by the aforementioned thick-walled light guide 100.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. The terms first, second, etc. are used to denote names, but not to denote any particular order.
Claims (10)
1. A thick-walled light guide (100), the thick-walled light guide (100) comprising a first light guide (101) and a second light guide (102), the first light guide (101) and the second light guide (102) being connected at an angle, the first light guide (101) and the second light guide (102) each comprising at least one coupler (103), characterized in that an auxiliary reflective surface (104) is provided on at least one of the first light guide (101) and the second light guide (102).
2. A thick-walled light guide (100) according to claim 1, wherein the coupler (103) is arranged such that, when a light source (106) is positioned at a predetermined point of the coupler (103), rays from the light source (106) entering the thick-walled light guide (100) from the predetermined point through the input face (105) of the coupler (103) are refracted in mutually parallel planes.
3. A thick-walled light guide (100) according to claim 1, wherein the auxiliary reflective surface (104) is a step-like structure in which the couplers of the first light guide (101) and/or the second light guide (102) are recessed with respect to their corresponding light guide planes towards the inside of the thick-walled light guide (100).
4. A thick-walled light guide (100) according to claim 3, wherein the surface of the secondary reflective surface (104) further comprises a stepped light guiding surface (107).
5. A thick-walled light guide (100) according to claim 2, wherein each coupler (103) corresponds to one of the light sources (106), respectively.
6. A thick-walled light guide (100) according to claim 5, wherein the light source (106) is a light emitting diode.
7. A thick-walled light guide (100) according to claim 6, characterized in that the light source (106) corresponding to each coupler (103) of the first light guide (101) is formed on a first PCB and the light source (106) corresponding to each coupler (103) of the second light guide (102) is formed on a second PCB.
8. A thick-walled light guide (100) according to claim 1, characterized in that the thick-walled light guide (100) is integrally formed.
9. A lighting device, characterized by comprising a thick-walled light guide (100) according to any one of claims 1 to 8.
10. A motor vehicle, characterized in that it comprises a lighting device according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122636669.8U CN217235478U (en) | 2021-10-29 | 2021-10-29 | Thick-walled light guide, lighting device and motor vehicle |
| PCT/EP2022/079879 WO2023072988A1 (en) | 2021-10-29 | 2022-10-26 | Light guide blade for a motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122636669.8U CN217235478U (en) | 2021-10-29 | 2021-10-29 | Thick-walled light guide, lighting device and motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217235478U true CN217235478U (en) | 2022-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122636669.8U Active CN217235478U (en) | 2021-10-29 | 2021-10-29 | Thick-walled light guide, lighting device and motor vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217235478U (en) |
| WO (1) | WO2023072988A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11933471B1 (en) * | 2023-02-02 | 2024-03-19 | Ford Global Technologies, Llc | Vehicle lighting assembly with covered light blade and lighting method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3003928A1 (en) * | 2013-03-27 | 2014-10-03 | Valeo Vision | LIGHTING OR SIGNALING DEVICE FOR MOTOR VEHICLE |
| DE102013212352A1 (en) * | 2013-06-26 | 2014-12-31 | Automotive Lighting Reutlingen Gmbh | Automotive lighting device with a Einkoppeloptik and a transport and forming optics |
| FR3042258A1 (en) * | 2015-10-09 | 2017-04-14 | Valeo Iluminacion Sa | TRANSPARENT LIGHT ELEMENT WITH MULTIPLE LIGHT SOURCES AND A COMMON EXIT SIDE |
| DE102016007709B4 (en) * | 2016-06-23 | 2023-02-02 | Mercedes-Benz Group AG | automotive trim part |
| CN113639247B (en) * | 2017-11-20 | 2023-11-28 | 市光法雷奥（佛山）汽车照明系统有限公司 | Light guide member, light emitting assembly, lighting device, and vehicle |
| JP7190929B2 (en) * | 2019-02-12 | 2022-12-16 | スタンレー電気株式会社 | vehicle lamp |
| WO2020173444A1 (en) * | 2019-02-25 | 2020-09-03 | 华域视觉科技(上海)有限公司 | High and low beam integrated vehicle lamp lighting device, vehicle lamp, and vehicle |
| EP3875847A1 (en) * | 2020-03-02 | 2021-09-08 | ZKW Group GmbH | Signal light device for a motor vehicle headlight |
-
2021
- 2021-10-29 CN CN202122636669.8U patent/CN217235478U/en active Active
-
2022
- 2022-10-26 WO PCT/EP2022/079879 patent/WO2023072988A1/en unknown
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| Publication number | Publication date |
|---|---|
| WO2023072988A1 (en) | 2023-05-04 |
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