CN114440191A - Light guide combination with light uniformity - Google Patents
Light guide combination with light uniformity Download PDFInfo
- Publication number
- CN114440191A CN114440191A CN202011211664.4A CN202011211664A CN114440191A CN 114440191 A CN114440191 A CN 114440191A CN 202011211664 A CN202011211664 A CN 202011211664A CN 114440191 A CN114440191 A CN 114440191A
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- light source
- guide
- source
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
-
- 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]
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention relates to a light guide combination with light uniformity, which comprises an LED light source, a first light guide and a second light guide, wherein the first light guide and the second light guide are arranged in a different surface mode, the projections of the first light guide and the second light guide on at least one plane are intersected, and light emitted by the LED light source is transmitted through the first light guide and the second light guide. The invention avoids the problem that the common intersecting light guide is easy to generate bright spots at the intersection, thereby improving the integral lighting uniformity; by adopting the light guide combination, the dark area at the intersection is made up without adding a triangular piece, and the manufacturing cost is saved.
Description
Technical Field
The invention relates to the technical field of vehicle lamps, in particular to a light guide combination with light uniformity.
Background
Light guides are increasingly being used in the design of vehicle light fixtures due to the ease of striping. When the vehicle lamp is designed in the whole automobile factory, the lamp model is not limited to a single light guide model, and various light guides with special models such as a complex C-shaped light guide or a round light guide are pursued.
Currently, there are mainly 2 of these types of specially shaped light guide designs:
(1) direct cross-type light guides, but bright spots are generated at the light guide cross positions, and the lighting appearance of the lamp is affected.
(2) The parallel light guide and the triangular piece are added, but the whole lightening effect of the model is not uniform, and the triangular piece has the problem of superbrightness.
Disclosure of Invention
The invention provides a light guide combination with light uniformity, aiming at solving the problems that the lighting effect is not uniform and bright spots are generated in the current two light guide designs.
Preferably, the first light guide is S-shaped, the second light guide is linear, and the first light guide and the second light guide are combined to form a C-shape. Light guide one and light guide two do not intersect, but the projections intersect, so that bright spots are generated at the light guide intersections.
Further, the light inlet end of the first light guide is positioned below the light inlet end of the second light guide.
Preferably, the light inlet end of the first light guide is located above the light inlet end of the second light guide.
Furthermore, the LED light source comprises a first light source and a second light source, the first light source and the second light source are located on the same pcb, and light rays emitted by the first light source and the second light source are transmitted through the first light guide and the second light guide respectively.
Preferably, the light guide is made of a PC material or a PMMA material. The PC material or PMMA material light guide has good light guide performance.
Further, the light guide is fixed in the vehicle lamp by a light guide holder.
Has the advantages that: the invention avoids the problem that the common intersecting light guide is easy to generate bright spots at the intersection, thereby improving the integral lighting uniformity; by adopting the light guide combination, the dark area at the intersection is made up without adding a triangular piece, and the manufacturing cost is saved.
Drawings
FIG. 1 is a schematic view of a first light guide assembly according to the present invention;
FIG. 2 is a schematic view of a second light guide assembly according to the present invention;
FIG. 3 is a schematic view of a third light guide assembly according to the present invention;
FIG. 4 is a schematic view of a fourth light guide assembly according to the present invention;
in the figure: 1. a first light guide; 2. a second light guide; 3. and a light inlet end.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "top", "bottom", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example one
A light guide combination with light uniformity comprises an LED light source, a light guide I1 and a light guide II 2, wherein the light guide I1 and the light guide II 2 are arranged in a non-coplanar mode, the projections of the light guide I1 and the light guide II 2 at least on one plane are intersected, and light emitted by the LED light source is transmitted through the light guide I1 and the light guide II 2. The first light guide 1 and the second light guide 2 are in a linear shape, and the first light guide 1 and the second light guide 2 are different in surface, but the projections of the first light guide 1 and the second light guide 2 at least on one plane are intersected, so that the problem of bright spots easily generated at the intersection by adopting a common intersected light guide is avoided, and the uniformity of integral lighting can be realized.
The LED light source comprises a first light source and a second light source, the first light source and the second light source are located on the same pcb, and light rays emitted by the first light source and the second light source are transmitted through the first light guide 1 and the second light guide 2 respectively.
The material of the first light guide 1 and the second light guide 2 is PC material or PMMA material. The PC material or PMMA material light guide has good light guide performance. The first light guide 1 and the second light guide 2 are fixed in the car lamp through the light guide frame.
As shown in fig. 1, the first light guide 1 is S-shaped, the second light guide 2 is linear, and the first light guide 1 and the second light guide 2 are combined to form a C-shape. Light guide one 1 and light guide two 2 do not intersect, but the projections intersect, so that bright spots are generated at the light guide intersections. As shown in fig. 1, the light input end 3 of the first light guide 1 is located below the light input end 3 of the second light guide 2, and the first light guide 1 is located in front of the second light guide 2.
Example two
The difference from the above embodiment is that: as shown in fig. 2, the light input end 3 of the first light guide 1 is located below the light input end 3 of the second light guide 2, and the first light guide 1 is located in front of the second light guide 2.
EXAMPLE III
The difference from the above embodiment is that: as shown in fig. 3, the light input end 3 of the first light guide 1 is located above the light input end 3 of the second light guide 2, and the first light guide 1 is located in front of the second light guide 2.
Example four
The difference from the above embodiment is that: as shown in fig. 4, the light input end 3 of the first light guide 1 is located above the light input end 3 of the second light guide 2, and the first light guide 1 is located behind the second light guide 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (7)
1. A light guide assembly having light uniformity, comprising: the LED light source comprises an LED light source, a first light guide (1) and a second light guide (2), wherein the first light guide (1) and the second light guide (2) are arranged in a non-planar mode, the first light guide (1) and the second light guide (2) are intersected in projection on at least one plane, and light rays emitted by the LED light source are transmitted through the first light guide (1) and the second light guide (2).
2. A light guide assembly as defined in claim 1, wherein: the first light guide (1) is S-shaped, the second light guide (2) is linear, and the first light guide (1) and the second light guide (2) are combined to form a C shape.
3. A light guide combination as claimed in claim 2, wherein: the light inlet end (3) of the first light guide (1) is positioned below the light inlet end (3) of the second light guide (2).
4. A light guide assembly as defined in claim 2, wherein: the light inlet end (3) of the first light guide (1) is positioned above the light inlet end (3) of the second light guide (2).
5. A light guide assembly as defined in claim 1, wherein: the LED light source comprises a first light source and a second light source, the first light source and the second light source are located on the same pcb, and light rays emitted by the first light source and the second light source are transmitted through the first light guide (1) and the second light guide (2) respectively.
6. A light guide assembly as defined in claim 1, wherein: the material PC material or PMMA material of light guide one (1) and light guide two (2).
7. A light guide assembly as defined in claim 1, wherein: the first light guide (1) and the second light guide (2) are fixed in the car lamp through the light guide frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011211664.4A CN114440191A (en) | 2020-11-03 | 2020-11-03 | Light guide combination with light uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011211664.4A CN114440191A (en) | 2020-11-03 | 2020-11-03 | Light guide combination with light uniformity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114440191A true CN114440191A (en) | 2022-05-06 |
Family
ID=81360635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011211664.4A Pending CN114440191A (en) | 2020-11-03 | 2020-11-03 | Light guide combination with light uniformity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114440191A (en) |
-
2020
- 2020-11-03 CN CN202011211664.4A patent/CN114440191A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9903999B2 (en) | Light assembly for illuminating an emblem | |
| US8322902B2 (en) | Optical system with main function for motor vehicle | |
| US20190170317A1 (en) | Light device, especially signal lamp, for motor vehicles | |
| CN213577291U (en) | Light guide combination with light uniformity | |
| TWI473951B (en) | Lighting device | |
| CN213840808U (en) | Light-diffusing lens, light-diffusing lens assembly and lamp | |
| US10113697B2 (en) | Bulb for a motor vehicle lamp | |
| CN114440191A (en) | Light guide combination with light uniformity | |
| CN203082754U (en) | Lighting device and vehicle instrument provided with same | |
| CN210771920U (en) | Double-light guide mounting structure of car lamp | |
| CN103292234B (en) | Clear zone car light wide | |
| CN207661561U (en) | Annulus ornament lamp | |
| CN217302685U (en) | Annular light guide structure capable of being uniformly lightened | |
| CN219775519U (en) | Atmosphere lamp for vehicle with three-dimensional running water effect | |
| CN213577283U (en) | LED reflection type light distribution uniformity improving structure | |
| CN220506581U (en) | Lens reflection cup integrated structure of lamp | |
| CN220249746U (en) | Optical standard module for automobile lamp | |
| CN219738433U (en) | Display device | |
| CN109017549A (en) | A kind of structure for realizing automotive upholstery light uniformity | |
| CN215851110U (en) | Two side LED light-emitting structure, car light-emitting grid and car light-emitting sign | |
| CN215863025U (en) | Atmosphere lamp optical structure integrated on automobile reading lamp | |
| CN220321115U (en) | Light guide structure for lighting edge dark area of light guide plate and car lamp using same | |
| CN220601290U (en) | Signal lamp optical system for car lamp | |
| CN112268263B (en) | Dynamic luminous tail lamp of automobile | |
| CN218237304U (en) | Automobile signal lamp LED light guide structure and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |