CN208042015U - Light guide member, car light and motor vehicles - Google Patents
Light guide member, car light and motor vehicles Download PDFInfo
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- CN208042015U CN208042015U CN201820288149.8U CN201820288149U CN208042015U CN 208042015 U CN208042015 U CN 208042015U CN 201820288149 U CN201820288149 U CN 201820288149U CN 208042015 U CN208042015 U CN 208042015U
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Abstract
The utility model provides a kind of light guide member, car light and motor vehicles.The light guide member includes：Light incident surface, the light incident surface are located at the longitudinal end of light guide member；Light-emitting face, the light-emitting face are located on first side adjacent with light incident surface of light guide member；And light reflection surface, the light reflection surface is located in the second side opposite with first side of light guide member, multiple light reflection structures are provided on the light reflection surface, the light reflection structure is arranged to reflect from the light beam of light incident surface incidence to the light-emitting face so that the light beam reflected by the light reflection structure can be emitted from light-emitting face, wherein, the shape in light reflection structure section with light convergence surface in the cross section with its axis oriented normal of light guide member, so that being converged before reaching light-emitting face by the light beam that light reflection structure reflects.
Description
Technical field
The utility model is related to a kind of light guide member, a kind of car light and a kind of motor vehicles.
Background technology
Car light is the important component of motor vehicles.Car light can provide illumination functions for motor vehicles, such as dipped headlight, remote
Light lamp, fog lamp etc., or motor vehicles provide signal designation function, such as clearance lamps, brake lamp etc..Wherein fog lamp exists
Greasy weather uses, it is desirable that irradiation distance is farther out, penetrability is strong, brightness is high.In current motor vehicles, fog lamp etc. needs to compare
The car light of stronger brightness of illumination, the structure of generally use light source and independent reflective mirror.And this structure it is usually heavier,
Structure is also more complicated and the space that occupies is larger.
Utility model content
The purpose of this utility model is to provide a kind of light guide member, and the light distribution that can be used to implement the car lights such as fog lamp is wanted
It asks.
The purpose of this utility model also resides in the car light and motor vehicles that offer includes above-mentioned light guide member.
The embodiments of the present invention provide a kind of light guide member, including：Light incident surface, the light incident surface are located at light
Lead the longitudinal end of component；Light-emitting face, the light-emitting face are located on first side adjacent with light incident surface of light guide member；
And light reflection surface, the light reflection surface are located in the second side opposite with first side of light guide member, the light reflection
Multiple light reflection structures are provided on face, the light reflection structure is arranged to from the light beam of light incident surface incidence to go out to the light
Face reflection is penetrated so that the light beam reflected by the light reflection structure can be emitted from light-emitting face, wherein the light reflection knot
The shape in structure section with light convergence surface in the cross section with its axis oriented normal of light guide member, so that by light reflection
The light beam of structure reflection is converged before reaching light-emitting face.
In one embodiment, the light reflection structure includes the prism array of deformation.
In one embodiment, the prism each deformed in the prism array of the deformation is in the cross section of light guide member
In height between 1.5 millimeters to 3 millimeters, along light guide member the longitudinal axis width between 2 millimeters to 4 millimeters.
In one embodiment, the shape in the section of the smooth convergence surface is parabolic shape.
In one embodiment, the parabolical focal length is between 70 millimeters to 90 millimeters.
In one embodiment, the light-emitting face is arranged to collimate the light beam reflected by the light reflection structure.
In one embodiment, in the cross section, the focus of the focus of the light reflection structure and the light-emitting face
Position is at least substantially consistent.
In one embodiment, in the cross section, the focus of the light reflection structure is located at the interior of the light guide member
Portion.
In one embodiment, the light guide member further includes the first reflection guide surface and the second reflection guide surface, is configured to
By from the light beam of light incident surface incidence towards the light guide member internal reflection, the first reflection guide surface and the second reflection are drawn
Guide face is located at the reciprocal third side and the 4th side of light guide member.
In one embodiment, the first reflection guide surface and the second reflection guide surface are in the cross section of light guide member
In have circular shape.
In one embodiment, the radius of the circular shape is between 3 millimeters to 5 millimeters.
In one embodiment, the angle of emergence of the light beam being emitted from the light-emitting face in the cross section of light guide member
Between positive and negative 5 degree.
In one embodiment, the light beam being emitted from the light-emitting face is in the water vertical with the cross section of light guide member
The angle of emergence in average face is between positive and negative 45 degree.
The embodiments of the present invention additionally provide a kind of car light for motor vehicles, including：Light source；And it is such as above-mentioned
Light guide member described in any embodiment, wherein the light incident surface is for receiving the incident beam sent out from light source.
The embodiments of the present invention additionally provide a kind of motor vehicles, include the light guide as described in above-mentioned any embodiment
Component or the car light as described in above-mentioned any embodiment.
The light guide member of embodiment according to the present utility model uses the light reflection structure with light beam convergence function,
Can by light beam before being emitted from light guide member into line convergence, to improve the glacing flatness and penetrability of outgoing beam.The light
Component is led to can be used for simplifying Vehicle lamp structure.
Description of the drawings
Fig. 1 schematically shows the vertical view of the light guide member of an embodiment according to the present utility model；
Fig. 2 schematically shows the sectional view along A-A of the light guide member of an embodiment according to the present utility model；With
Fig. 3 schematically shows the amplification of the light reflection structure of the light guide member of an embodiment according to the present utility model
Figure.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.?
In specification, same or analogous drawing reference numeral indicates same or analogous component.It is following real to the utility model with reference to attached drawing
The explanation for applying mode is intended to explain the overall utility model design of the utility model, and is not construed as to this practicality
A kind of novel limitation.
In addition, in the following detailed description, for ease of explaining, elaborating many concrete details to provide to present disclosure
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments also may be used without these specific details
To be carried out.
Fig. 1 schematically shows the vertical view of the light guide member 100 of an embodiment according to the present utility model.Fig. 2 is should
The sectional view along A-A of light guide member 100.The light guide member 100 may include light incident surface 10, light-emitting face 20 and light reflection surface
30.Light incident surface 10 is located at the longitudinal end of light guide member 100.In Fig. 1, the longitudinal direction of light guide member 100 is indicated by x.It needs
Illustrate, light incident surface 10 can be located at only one end of light guide member 100, can also be located at the both ends of light guide member 100, light
The number of the plane of incidence 10 is not limited to one, can also have multiple.Light-emitting face 20 be located at light guide member 100 with light incident surface 10
On the first adjacent side.Light reflection surface 30 is located in the second side opposite with first side of light guide member 100.
So-called light guide member or light guide refer to the leaded light for mainly making light be transmitted inside it with total reflection mode
Device.It can have variously-shaped, such as cylindrical (can be described as lamp guide), strip (can be described as light-strip, lamp bar), plate
Shape (can be described as light guide plate), annular (can be described as light guide ring) etc..Due to being mainly transmitted using total reflection mode, light guide portion
The optical efficiency of part is high, and light loss is small.
The effect of light reflection surface 30 is, is reflected it on light-emitting face 20 when light beam reaches light reflection surface 30, because
And the light beam can be emitted from light-emitting face 20.The reflection effect of light reflection surface 30 can be by being arranged in the light reflection surface 30
On multiple light reflection structures 31 realize.Light reflection structure 31 is arranged to will be from the incident light beam of light incident surface 10 to the light
Exit facet 20 reflects, so as to can be emitted from light-emitting face 20 by the light beam that the light reflection structure 31 reflects.For example, light is anti-
Prism shape can be had by penetrating structure 31.However, in the embodiments of the present invention, light reflection structure 31 have with it is common
The different structure of prism.From figure 2 it can be seen that the light reflection structure 31 is in the vertical with light guide member of light guide member 100
The shape in the section (such as can be parabolic shape) with light convergence surface in the cross section vertical to x.This can make by
The light beam that light reflection structure 31 reflects is converged before reaching light-emitting face 20.
That is, in embodiment according to the present utility model, light reflection structure 31 can not only realize light reflection effect,
It can also realize the convergence for light beam.To light beam into line convergence before light beam is emitted from light-emitting face 20, light beam can be enable
It is enough more to concentrate, the brightness of emergent light can be improved.In particular, light-emitting face 20 can for example be arranged to have collimation dress substantially
The shape set, such as the shape on outer lens or collimation lens surface.Therefore, light-emitting face 20 is arranged to by light reflection structure
The light beam of 31 reflections is collimated.In this case, the light beam being emitted from light-emitting face 20 will be relatively straight, favorably
In the penetrability and brightness that improve light beam.As an example, in cross section as shown in Figure 2, the focus of light reflection structure 31 with
The focal position of the light-emitting face 20 is consistent.In fig. 2, by the coke of the focus of light reflection structure 31 and the light-emitting face 20
Point, which is depicted as, to be completely superposed.It will be understood by those skilled in the art, however, that for the reason of the manufacturing process, " light reflection structure
31 focus is consistent with the focal position of the light-emitting face 20 ", it is not meant to the focus of light reflection structure 31 and the light
The focus of exit facet 20 must be completely superposed, for example, can have smaller distance, such as their coke between their focus
The distance between point is less than 1mm, is less than 0.5mm or less than 0.3mm etc..In the embodiments of the present invention, in the cross
In section, the focus of the light reflection structure 31 is located at the inside of the light guide member.It should be pointed out that in the prior art
Light reflection structure often for light beam to be disperseed, rather than as described in the embodiments of the present invention by light beam into
Line convergence.
As an example, the shape in the section of the smooth convergence surface is parabolic shape, for example, the smooth convergence surface
Focal length can be between 70 millimeters to 90 millimeters.
As an example, light reflection structure 31 may include the prism array of deformation, as shown in Figure 3.The prism battle array of the deformation
Row for example can be successively arranged in along the longitudinal direction of light guide member 100 on the light reflection surface 30.From figure 3, it can be seen that every
Seamed edge between the top and bottom of the prism 32 of a deformation all has the shape (such as parabolically shape) of bending.This bending
Shape light reflection structure 31 can be helped to realize the function of above-mentioned convergent beam.In this application, the prism of so-called deformation
It is to be obtained by flexural deformation by common prism, section has the shape in the section of light convergence surface, to have
The ability of convergent beam.As an example, institute of the prism 32 each deformed in the prism array of the deformation in light guide member 100
The height h stated in cross section for example can be between 1.5 millimeters to 3 millimeters, along width w of the longitudinal axis of light guide member 100
It such as can be between 2 millimeters to 4 millimeters.
Figure it is seen that the cross-sectional shape of light reflection structure 31 so that light beam is assembled towards focus F, to make
Light beam is obtained finally to project from light-emitting face 20 in the form of more straight.And conventional light reflection structure in the prior art, often
It is to break up light beam, is the technique effect that cannot achieve described in the embodiments of the present invention.
In one example, as shown in Fig. 2, in the reciprocal third side (being located above in fig. 2) of light guide member 100
The first reflection guide surface 40 and second can also be respectively equipped with the 4th side (being located at lower section in fig. 2) and reflect guide surface 50.By
In the first side that not only can be in directive light guide member 100 where light reflection structure from the light beam of light incident surface incidence, can also penetrate
To other sides, for example, above-mentioned third side and the 4th side.First reflection guide surface 40 and second, which reflects guide surface 50, to be configured
It at the light beam that will be reflected to thereon towards 100 internal reflection of light guide member, is for example, totally reflected, this can prevent light beam from light guide
The side of the undesirable outgoing of component 100 is projected, and optical efficiency can also be improved.As an example, the first reflection guide surface
40 and second reflect guide surface 50 in the cross section of light guide member 100 with circular shape.For example, the circular shape
Radius between 3 millimeters to 5 millimeters.Similarly, can also be arranged to will be without light reflection for the shape of light-emitting face 20
Structure 31 and inside the light beam back into light guide component 100 of 100 inside directive light-emitting face 20 of light guide member, can protect in this way
Demonstrate,prove the beam shape expected from the light beam satisfaction that light-emitting face 20 projects.
As an example, the light beam being emitted from the light-emitting face 20 is in the cross section as shown in Figure 2 of light guide member 100
The angle of emergence between positive and negative 5 degree.Angle of emergence α for example can be the angle of emergence on vertical direction.As an example,
The light beam being emitted from the light-emitting face 20 is in the vertical horizontal plane in the cross section as shown in Figure 2 with light guide member 100
Angle of emergence β (as shown in Figure 1) between positive and negative 45 degree.The outgoing that the angle of emergence can be for example horizontally oriented
Angle.This for light guide member 100 in car light, especially being advantageously applied of fog lamp (such as front fog lamp).In fig. 1 and 2,
The incident beam of light guide member 100 indicates that outgoing beam is indicated by 62 by 61, and light is indicated by filled arrows.
In the embodiments of the present invention, light guide member is used to realize car light (such as fog lamp), this can be to avoid making
With structures such as independent reflective mirror, outer lens, the integrated level of optical system is improved, simplifies Vehicle lamp structure.In addition, due to light guide portion
Part can have more flexible design, therefore can preferably utilize design space.
Although in the above-described embodiments, being retouched by taking the prism of deformation (being equipped with the bending sections with convergent beam function) as an example
The light reflection structure in the light guide member in embodiment according to the present utility model has been stated, still, the implementation of the utility model
Example without being limited thereto, the section with light convergence surface of other forms, the light that can realize the above-mentioned convergence function for light beam
Catoptric arrangement can use.
The embodiments of the present invention additionally provide a kind of car light for motor vehicles.The car light may include one or
More light sources 60 and the light guide member 100 as described in above-mentioned any embodiment.As an example, the light of light guide member 100 enters
Penetrating face 10 can be arranged for receiving the incident beam 61 sent out from light source 60.In one example, which may include
LED source or other light sources known in the art.As an example, one or more light source 60 can face
Light incident surface 10 is arranged.Using multiple light sources, multiple light sources can also be arranged at array format.
In the embodiments of the present invention, light guide member 100 may include 10, two light incident surfaces of a light incident surface
10, or more light incident surface 10, such as the light incident surface of multiple separation can be set in the longitudinal end of light guide member 100
10。
In the embodiments of the present invention, the light guide member 100 can be solid construction, such as can by resin,
Plastic or other material is made, such as is made of makrolon or polymethyl methacrylate, but the embodiments of the present invention are unlimited
In this.
Although above-mentioned be described the light guide member 100 of embodiment according to the present utility model by taking car light as an example,
It should be appreciated that the light guide member 100 of embodiment according to the present utility model is not limited to be applied to car light, it can also be applied to
In the lamps and lanterns of his straight illuminating bundle of needs.
The embodiments of the present invention additionally provide a kind of motor vehicles, include the light guide as described in above-mentioned any embodiment
Component 100 or car light as described above.
Although the utility model is illustrated in conjunction with attached drawing, embodiment disclosed in attached drawing is intended to this practicality
Novel preferred embodiment illustrates, and should not be understood as a kind of limitation to the utility model.Ruler in attached drawing
Very little ratio is only schematical, can not be construed as a limitation of the present invention.
Although some embodiments of the utility model general plotting have been shown and have illustrated, those of ordinary skill in the art will
Understand, in the case of the principle and spirit conceived without departing substantially from this totality utility model, these embodiments can be made a change, this
The range of utility model is limited with claim and their equivalent.
Claims (15)
1. a kind of light guide member (100), which is characterized in that including：
Light incident surface (10), the light incident surface (10) are located at the longitudinal end of the light guide member (100)；
Light-emitting face (20), the light-emitting face (20) be located at the light guide member (100) with the light incident surface (10) phase
On the first adjacent side；And
Light reflection surface (30), the light reflection surface (30) are located at opposite with first side of the light guide member (100)
On two sides, it is provided with multiple light reflection structures (31) on the light reflection surface (30), the light reflection structure (31) will be from described
The light beam of light incident surface (10) incidence is reflected to the light-emitting face (20), so that by the light reflection structure (31) reflection
Light beam can be emitted from light-emitting face (20),
Wherein, the light reflection structure (31) has light in the cross section with its axis oriented normal of the light guide member (100)
The cross sectional shape of convergence surface, so that reaching the light-emitting face (20) by the light beam of the light reflection structure (31) reflection
It is converged before.
2. light guide member (100) according to claim 1, which is characterized in that the light reflection structure (31) includes deformation
Prism array.
3. light guide member (100) according to claim 2, which is characterized in that each become in the prism array of the deformation
Height of the prism (32) of shape in the cross section of the light guide member (100) is between 1.5 millimeters to 3 millimeters, along described
The width of the longitudinal axis of light guide member (100) is between 2 millimeters to 4 millimeters.
4. light guide member (100) according to claim 2, which is characterized in that the cross sectional shape of the smooth convergence surface is
Parabolic shape.
5. light guide member (100) according to claim 4, which is characterized in that the focal length of the smooth convergence surface is in 70 millis
Rice is between 90 millimeters.
6. light guide member (100) according to claim 1, which is characterized in that the light-emitting face (20) is arranged to quilt
The light beam of light reflection structure (31) reflection is collimated.
7. light guide member (100) according to claim 6, which is characterized in that in the cross section, the light reflection knot
The focus of structure (31) is at least substantially consistent with the position of the focus of the light-emitting face (20).
8. light guide member (100) according to any one of claim 1 to 7, which is characterized in that in the cross section,
The focus of the light reflection structure (31) is located at the inside of the light guide member (100).
9. light guide member (100) according to any one of claim 1 to 7, which is characterized in that further include that the first reflection is drawn
Guide face (40) and the second reflection guide surface (50), they will be from the light beam of the light incident surface (10) incidence towards the light guide portion
Part (100) internal reflection, the first reflection guide surface (40) and the second reflection guide surface (50) are located at the light
Lead the reciprocal third side and the 4th side of component (100).
10. light guide member (100) according to claim 9, which is characterized in that the first reflection guide surface (40) and institute
State the second reflection guide surface (50) has circular shape in the cross section of the light guide member (100).
11. light guide member (100) according to claim 10, which is characterized in that the radius of the circular shape is at 3 millimeters
To between 5 millimeters.
12. light guide member (100) according to any one of claim 1 to 7, which is characterized in that from the light-emitting face
(20) angle of emergence of the light beam being emitted in the cross section of the light guide member (100) is between positive and negative 5 degree.
13. light guide member (100) according to any one of claim 1 to 7, which is characterized in that from the light-emitting face
(20) angle of emergence of the light beam being emitted in the horizontal plane vertical with the cross section of the light guide member (100) is at positive and negative 45 degree
Between.
14. a kind of car light for motor vehicles, which is characterized in that including：
Light source (60)；And
Light guide member (100) according to any one of claim 1 to 13,
The wherein described light incident surface (10) is for receiving the incident beam (61) sent out from light source (60).
15. a kind of motor vehicles, which is characterized in that including light guide member according to any one of claim 1 to 13
(100) or car light according to claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820288149.8U CN208042015U (en) | 2018-02-28 | 2018-02-28 | Light guide member, car light and motor vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820288149.8U CN208042015U (en) | 2018-02-28 | 2018-02-28 | Light guide member, car light and motor vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208042015U true CN208042015U (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820288149.8U Active CN208042015U (en) | 2018-02-28 | 2018-02-28 | Light guide member, car light and motor vehicles |
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| Country | Link |
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| CN (1) | CN208042015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856641A (en) * | 2019-04-28 | 2020-10-30 | 法雷奥照明湖北技术中心有限公司 | Light guide, light emitting device comprising the same, and motor vehicle |
-
2018
- 2018-02-28 CN CN201820288149.8U patent/CN208042015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856641A (en) * | 2019-04-28 | 2020-10-30 | 法雷奥照明湖北技术中心有限公司 | Light guide, light emitting device comprising the same, and motor vehicle |
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