CN216952892U - Light guide structure, lighting device and vehicle - Google Patents
Light guide structure, lighting device and vehicle Download PDFInfo
- Publication number
- CN216952892U CN216952892U CN202122173117.8U CN202122173117U CN216952892U CN 216952892 U CN216952892 U CN 216952892U CN 202122173117 U CN202122173117 U CN 202122173117U CN 216952892 U CN216952892 U CN 216952892U
- Authority
- CN
- China
- Prior art keywords
- light
- reflection
- exit
- guide structure
- guiding structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model provides a light guide structure, which comprises a first light inlet part, a first reflection part, a second reflection part and a light outlet part, wherein a first light source is used for a first illumination function; the first reflection part reflects at least one part of light rays from the first light incident part to the second reflection part; the second reflecting part reflects at least one part of light rays from the first reflecting part to the light emergent part; the light guide structure further comprises a second light incident part, a third reflecting part and a fourth reflecting part, wherein the second light incident part receives light rays from a second light source, and the second light source is used for a second illumination function; the third reflecting part reflects at least one part of light rays from the second light incoming part to the fourth reflecting part; the fourth reflecting part reflects at least a part of the light rays from the third reflecting part to the light emergent part. The utility model also provides a lighting device and a vehicle.
Description
Technical Field
The utility model relates to the technical field of car lamps, in particular to a light guide structure, a lighting device and a car.
Background
In recent years, there have been proposals to integrate a plurality of lamp groups (such as a high beam, a low beam, a daytime running lamp, a turn signal lamp, a position lamp, etc.) into the same lamp. However, in the case where a plurality of lamp groups share the light emitting surface, how to design the light path is a great challenge.
SUMMERY OF THE UTILITY MODEL
It is therefore an object of the present invention to propose a light guiding structure, a lighting device and a vehicle, which are able to at least partially solve the above mentioned problems.
According to an aspect of the present invention, there is provided a light guide structure, including a first light incident portion, a first reflective portion, a second reflective portion, and a light exiting portion, wherein a first light source is used for a first illumination function; the first reflection part reflects at least one part of light rays from the first light incident part to the second reflection part; the second reflecting part reflects at least one part of light rays from the first reflecting part to the light emergent part;
the light guide structure further comprises a second light incident part, a third reflecting part and a fourth reflecting part, wherein the second light incident part receives light rays from a second light source, and the second light source is used for a second illumination function; the third reflecting part reflects at least one part of light rays from the second light incoming part to the fourth reflecting part; the fourth reflecting part reflects at least a part of the light rays from the third reflecting part to the light emergent part.
According to an embodiment of the utility model, for both the first and the second illumination function, the light guiding structure achieves their required light distribution by double reflection, so that these illumination functions can share the same light exit portion.
In some embodiments, the light from the first light source and the light from the second light source exit from different areas of the light exit portion.
According to the embodiment of the utility model, the first illumination function and the second illumination function are emitted from different areas of the light emitting part, so that the design of the light guide structure is more flexible.
In some embodiments, the first and third reflective portions are offset in the exit direction of the light rays, and the second and fourth reflective portions are offset in a first direction transverse to the exit direction of the light rays.
According to the embodiments of the present invention, it is possible to cause the light rays of the first illumination function and the second illumination function to exit from different areas of the light exit portion in the first direction transverse to the exit direction of the light rays.
In some embodiments, the first and third reflective portions are offset in a second direction transverse to the exit direction of the light, and the second and fourth reflective portions are also offset in the second direction transverse to the exit direction of the light.
According to the embodiments of the present invention, it is possible to cause the light rays of the first illumination function and the second illumination function to exit from different areas of the light exit portion in the second direction transverse to the exit direction of the light rays.
In some embodiments, the light guide structure is integrally formed.
According to the embodiment of the utility model, the light guide structure is integrally formed, so that the production process can be simplified.
In some embodiments, the focal points of the first and second reflection portions are located between the first and second reflection portions and coincide with each other, and the light reflected by the first reflection portion converges at the focal points and then diverges.
According to the embodiment of the utility model, the focal points of the first reflecting part and the second reflecting part are overlapped, so that the first reflecting part and the second reflecting part are matched with each other to convert the incident light into the basically parallel light to be emitted.
In some embodiments, the light guide structure further includes a bending portion extending from the first reflection portion toward the second reflection portion and having a cut-off edge near the focal point for forming a cut-off line of the light distribution of the first illumination function.
According to an embodiment of the utility model, the bending portion may form a cut-off line of the light distribution of the first lighting function.
In some embodiments, the first light incident portion includes a collimator that collimates light from the first light source, and the first and second reflection portions include parabolic reflection portions.
According to an embodiment of the present invention, the above configuration of the light guiding structure may cause the light rays of the first illumination function to exit from the light exit portion substantially in parallel.
In some embodiments, the second light incident portion includes a collimator that collimates light from the second light source, and the third and fourth reflection portions include a planar reflection portion.
According to an embodiment of the present invention, the above configuration of the light guiding structure may cause the light rays of the second illumination function to exit from the light exit portion substantially in parallel.
According to another aspect of the present invention, there is also provided a lighting device including any one of the light guide structures described above.
According to yet another aspect of the present invention, there is provided a vehicle including the above-described lighting device.
Drawings
In order to facilitate understanding of the utility model, the utility model is described in more detail below on the basis of exemplary embodiments and with reference to the attached drawings. The same or similar reference numbers are used in the drawings to refer to the same or similar parts. It should be understood that the drawings are merely schematic and that the dimensions and proportions of elements in the drawings are not necessarily precise.
FIG. 1 shows a perspective view of a light guiding structure 10 according to an embodiment of the present invention;
FIG. 2 shows a perspective view of another angle of light guiding structure 10 according to an embodiment of the present invention;
FIG. 3 shows a front view of a light guiding structure 10 according to an embodiment of the present invention;
FIG. 4 shows a top view of a light guiding structure 10 according to an embodiment of the present invention;
FIG. 5 shows a side view of a light guiding structure 10 according to an embodiment of the present invention;
FIG. 6 shows a cross-sectional view of light guiding structure 10 along line A-A of FIG. 3 and an optical path diagram;
fig. 7 shows a cross-sectional view of the light guiding structure 10 along the line B-B in fig. 3, together with an optical path diagram.
Detailed Description
Embodiments of the present invention are exemplarily described below. As will be realized by those skilled in the art, the illustrated embodiments can be modified in various different ways, without departing from the spirit of the utility model. 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.
In the embodiments of the present invention and the description of the drawings, the X axis represents the longitudinal direction, the Y axis represents the lateral direction, the Z axis represents the vertical direction, and the "front", "rear", "left", and "right" are referred to the forward direction of the X axis, and the "up" and "down" are referred to the forward direction of the Z axis.
The present invention is described in detail below with reference to the accompanying drawings.
FIG. 1 shows a perspective view of a light guiding structure 10 according to an embodiment of the present invention; FIG. 2 shows a perspective view of another angle of light guiding structure 10 according to an embodiment of the present invention; FIG. 3 shows a front view of a light guiding structure 10 according to an embodiment of the present invention; FIG. 4 shows a top view of a light guiding structure 10 according to an embodiment of the present invention; fig. 5 shows a side view of a light guiding structure 10 according to an embodiment of the utility model. As shown in fig. 1, the light guide structure 10 includes a first light incident portion 100, a first reflective portion 200, a second reflective portion 300, and a light exiting portion 400, wherein the first light incident portion 100 receives light from a first light source (not shown) for a first illumination function; the first reflection part 200 reflects at least a part of the light from the first light incident part 100 to the second reflection part 300; the second reflecting portion 300 reflects at least a portion of the light from the first reflecting portion 200 to the light emergent portion 400. The light guide structure 10 further includes a second light incident portion 500, a third reflective portion 600, and a fourth reflective portion 700, wherein: the second light incoming portion 500 receives light from a second light source (not shown) for a second lighting function; the third reflector 600 reflects at least a portion of the light from the second light incident part 500 to the fourth reflector 700; the fourth reflection part 700 reflects at least a portion of the light from the third reflection part 600 to the light emitting part 400.
In one example, the first lighting function includes a low beam and/or high beam function and the second lighting function includes a daytime running light and/or a position light. It will be appreciated that the first and second illumination functions are not limited to the above examples, but may also include any other suitable illumination function.
In one example, light rays for the first illumination function (i.e., light rays from the first light source) and light rays for the second illumination function (i.e., light rays from the second light source) exit from different areas of the light exit portion 400.
In an embodiment of the utility model, for both the first and the second illumination function, the light guiding structure achieves their required light distribution by double reflection, so that these illumination functions may share the same light exit portion. And make first illumination function and second illumination function follow different areas of light-emitting portion and go out, can make the design of light guide structure more nimble.
Fig. 6 shows a cross-sectional view and an optical path diagram of light guiding structure 10 along line a-a in fig. 3, and fig. 7 shows a cross-sectional view and an optical path diagram of light guiding structure 10 along line B-B in fig. 3. As one of the emission methods of the light rays for the first and second illumination functions, as shown in fig. 6 and 7, the light rays for the first illumination function from the second reflection portion 300 are emitted substantially from the upper half of the light emitting portion 400, and the light rays for the second illumination function from the third reflection portion 700 are emitted substantially from the lower half of the light emitting portion 400.
To realize the above-mentioned emitting manner of the light, as shown in fig. 1 to 5, the first reflecting portion 200 and the first light incident portion 100 are oppositely arranged in the X-axis direction (or the emitting direction of the light), so that the first reflecting portion 200 can receive the light from the first light incident portion 100; the first and second reflection parts 200 and 300 are oppositely arranged in the Z-axis direction (or a direction transverse to the light outgoing direction) so that the second reflection part 300 can receive the light from the first reflection part 200; the second reflection part 300 and the light exit part 400 are oppositely arranged in the X-axis direction (or the exit direction of the light rays) so that the light rays reflected by the second reflection part 300 can exit from the light exit part 400.
Similarly, the third reflection part 600 is arranged opposite to the second light incoming part 500 in the X-axis direction (or the outgoing direction of the light) so that the third reflection part 600 can receive the light from the second light incoming part 500; the third reflection part 600 and the fourth reflection part 700 are oppositely arranged in the Z-axis direction (or a direction transverse to the light outgoing direction) so that the fourth reflection part 700 can receive the light from the third reflection part 600; the fourth reflection part 700 and the light exit part 400 are oppositely arranged in the X-axis direction (or the exit direction of the light rays) so that the light rays reflected by the fourth reflection part 700 can exit from the light exit part 400.
In addition, as shown in fig. 1, 2, 4, and 5, the first reflection part 200 and the third reflection part 600 are offset in the X-axis direction (or the emission direction of the light rays), specifically, the third reflection part 600 is located in front of the first reflection part 200; the second and fourth reflection parts 300 and 700 are offset in the Z-axis direction (or a direction transverse to the light emitting direction), and specifically, the fourth reflection part 700 is located below the second reflection part 300.
With the above arrangement of the light guide structure 10, the light for the first illumination function from the second reflection portion 300 can be emitted from substantially the upper half of the light exit portion 400, and the light for the second illumination function from the third reflection portion 700 can be emitted from substantially the lower half of the light exit portion 400.
It is to be understood that the above-described configuration is not restrictive, and as a modified example, the light for the first illumination function may be emitted from substantially the lower half of the light emitting part 400, and the light for the second illumination function may be emitted from substantially the upper half of the light emitting part 400, and for this reason, the positions of the first and second light incident parts 100 and 500, the first and third reflection parts 200 and 600, and the second and fourth reflection parts 300 and 700 need to be switched. As another modified example, the light for the first illumination function and the light for the second illumination function may also be emitted from the left half and the right half of the light emitting part 400, respectively, and for this reason, the first reflection part 200 and the third reflection part 600 may be offset in the Y direction (or a direction transverse to the light emitting direction), and the second reflection part 300 and the fourth reflection part 700 may also be offset in the Y direction (or a direction transverse to the light emitting direction).
Each of the light incident portion and the reflection portion in any of the above embodiments is described in detail below.
In one example, the light rays for the first illumination function exit the light exit portion 400 substantially in parallel. For this reason, the first light incident portion 100 may have a collimating function, that is, the incident light from the first light source may be incident to the first reflection portion 200 substantially in parallel. The first and second reflection parts 200 and 300 may have a focal point F that coincides, as shown in fig. 6, between the first and second reflection parts 200 and 300, and substantially parallel light rays incident on the first reflection part 200 are first converged to the focal point F after being reflected by the first reflection part 200 and then diverged. In the case where both the first and second reflection parts 200 and 300 include parabolic reflection parts, the light converging to the focal point F is divergently incident on the second reflection part 300, and is reflected by the second reflection part 300 as substantially parallel light to be emitted from the light emitting part 400. It is understood that the first and second reflection parts 200 and 300 are not limited to the parabolic reflection part, but may be any other suitable combination of reflection parts capable of realizing substantially parallel outgoing light rays.
Further, as shown in fig. 1, 3, 4, and 5, the light guide structure 10 further includes a bending portion 800 extending from the first reflection portion 200 toward the second reflection portion 300 and having a cut-off edge 810 having a broken line shape near the focal point F. The light incident on the non-blocking edge 810 region of the bending part 800 is not reflected to the second reflecting part 300, thereby forming a cut-off line of the light distribution of the first lighting function.
Preferably, the first and second reflection parts 200 and 300 may be total reflection parts to provide optical efficiency.
In one example, the light rays for the second illumination function also exit the light exit portion 400 substantially in parallel. Therefore, the second light incident portion 100 may have a collimating function, that is, the incident light from the second light source may be incident on the third reflecting portion 600 substantially in parallel. In addition, the third and fourth reflection parts 600 and 700 may include plane reflection parts, whereby light rays may be reflected substantially in parallel, and finally, the light rays may be emitted substantially in parallel from the light emitting part. It is understood that the third reflection part 600 and the fourth reflection part 700 are not limited to the plane reflection part, but may be any other suitable combination of reflection parts capable of realizing substantially parallel outgoing light rays.
Preferably, the third and fourth reflection parts 600 and 700 may be total reflection parts to provide optical efficiency.
In any of the embodiments described above, the light guide structure 10 may be integrally formed. In one example, the light guide structure 10 may be made of a transparent material as a whole, and on the basis of this, each of the reflection portions may be optionally subjected to reflection enhancement treatment, such as, but not limited to, aluminum plating or the like, to improve the reflectivity. In one example, each of the reflective portions may also be subjected to a reflection uniformity process, such as, but not limited to, a dermatoglyph process, a division of optical facets, and the like, to improve the uniformity of the outgoing light rays.
According to another aspect of the present invention, there is also provided a lighting device, including any one of the light guide structures 10 described above.
According to still another aspect of the utility model, there is also provided a vehicle including the above-described lighting device.
Although the technical objects, technical solutions and technical effects of the present invention have been described in detail hereinabove with reference to specific embodiments, it should be understood that the above embodiments are only illustrative and not restrictive. Any modification, equivalent replacement, or improvement made by those skilled in the art within the spirit and principle of the present invention is included in the protection scope of the present invention.
Claims (11)
1. A light-guiding structure (10), characterized by:
the light guide structure (10) comprises a first light incident part (100), a first reflection part (200), a second reflection part (300) and a light emergent part (400), wherein:
the first light inlet part (100) receives light from a first light source, and the first light source is used for a first illumination function; the first reflection part (200) reflects at least a part of the light from the first light incident part (100) to the second reflection part (300); the second reflection part (300) reflects at least a part of the light from the first reflection part (200) to the light emergent part (400);
the light guide structure (10) further comprises a second light incident portion (500), a third reflection portion (600) and a fourth third reflection portion (700), wherein:
the second light inlet part (500) receives light from a second light source, and the second light source is used for a second lighting function; the third reflection part (600) reflects at least a part of the light from the second light incident part (500) to the fourth reflection part (700); the fourth third reflection part (700) reflects at least a part of the light from the third reflection part (600) to the light emitting part (400).
2. The light guiding structure (10) according to claim 1, wherein light rays from the first light source and light rays from the second light source exit from different areas of the light exit portion (400).
3. The light guiding structure (10) of claim 2, wherein the first (200) and third (600) reflective portions are offset in the direction of light exit, and the second (300) and fourth (700) reflective portions are offset in a first direction transverse to the direction of light exit.
4. The light guiding structure (10) according to claim 2, wherein the first (200) and third (600) reflective portions are offset in a second direction transverse to the exit direction of the light, and the second (300) and fourth (700) reflective portions are also offset in a second direction transverse to the exit direction of the light.
5. The light-guiding structure (10) according to claim 1, wherein the light-guiding structure (10) is integrally formed.
6. The light guide structure (10) according to any one of claims 1 to 5, wherein the focal points of the first and second reflective portions (200, 300) are located between the first and second reflective portions (200, 300) and coincide, and the light rays reflected by the first reflective portion (200) converge and diverge at the focal points.
7. The light guide structure (10) according to claim 6, wherein the light guide structure (10) further comprises a bending portion (800) extending from the first reflection portion (200) towards the second reflection portion (300) and having a cut-off edge near the focal point for forming a cut-off line of the light distribution of the first illumination function.
8. The light guide structure (10) of claim 6, wherein the first light entry portion (100) comprises a collimator that collimates light from a first light source, and the first and second reflective portions (200, 300) comprise parabolic reflective portions.
9. The light guide structure (10) according to any one of claims 1 to 5, wherein the second light entry portion (500) comprises a collimator capable of collimating light from a second light source, and the third reflection portion (600) and the fourth reflection portion (700) comprise planar reflection portions.
10. A lighting device, characterized in that it comprises a light-guiding structure (10) according to any one of claims 1 to 9.
11. A vehicle characterized in that it comprises a lighting device according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122173117.8U CN216952892U (en) | 2021-09-08 | 2021-09-08 | Light guide structure, lighting device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122173117.8U CN216952892U (en) | 2021-09-08 | 2021-09-08 | Light guide structure, lighting device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216952892U true CN216952892U (en) | 2022-07-12 |
Family
ID=82289977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122173117.8U Active CN216952892U (en) | 2021-09-08 | 2021-09-08 | Light guide structure, lighting device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216952892U (en) |
-
2021
- 2021-09-08 CN CN202122173117.8U patent/CN216952892U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11085603B2 (en) | Motor vehicle headlight module for emitting a light beam | |
| US9400089B2 (en) | Vehicle lighting unit | |
| US8752990B2 (en) | Vehicle light | |
| JP6340751B2 (en) | Lens body and vehicle lamp | |
| EP2143991B1 (en) | Lamp | |
| US7661860B2 (en) | Lighting and/or signalling device for a motor vehicle | |
| US8480266B2 (en) | Vehicle light unit and vehicle light | |
| US7322729B2 (en) | Light guiding unit, light guiding unit assembly, and lighting device including the same | |
| JP7333169B2 (en) | vehicle lamp | |
| US7985011B2 (en) | Vehicle lamp | |
| CN112469941A (en) | Front light device | |
| JP6855404B2 (en) | Vehicle lighting | |
| JP2014060155A (en) | Illuminating module for motor vehicle | |
| CN112082131A (en) | Slender lamp device for vehicle | |
| CN106895335B (en) | Light emitting module made of transparent material | |
| KR102293083B1 (en) | Illumination device for a motor vehicle head lamp and motor vehicle head lamp | |
| CN216952892U (en) | Light guide structure, lighting device and vehicle | |
| CN210219614U (en) | Vehicle lamp | |
| KR101987286B1 (en) | A lamp for vehicle | |
| WO2022222991A1 (en) | Vehicle lamp and motor vehicle | |
| JP5773189B2 (en) | Lamp | |
| CN208042015U (en) | Light guide member, car light and motor vehicles | |
| CN217763274U (en) | Optical element, lighting device and vehicle | |
| CN217928593U (en) | Lamp for vehicle | |
| CN213542367U (en) | Double-light illuminating device for vehicle headlamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |