CN207674352U - A kind of reflective heavy wall light guide and lighting device - Google Patents
A kind of reflective heavy wall light guide and lighting device Download PDFInfo
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- CN207674352U CN207674352U CN201721686793.2U CN201721686793U CN207674352U CN 207674352 U CN207674352 U CN 207674352U CN 201721686793 U CN201721686793 U CN 201721686793U CN 207674352 U CN207674352 U CN 207674352U
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- heavy wall
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Abstract
The utility model is related to optical fields, and in particular to a kind of reflective heavy wall light guide and lighting device.A kind of reflective heavy wall light guide, including at least one reflecting surface, at least one top surface, at least one correction face and at least one light-emitting surface, the top surface connects with reflecting surface, correction face respectively, and the cavity of a bottom opening is collectively formed in the reflecting surface, top surface and correction face.The problem of it is complicated to solve reflecting surface and lampshade separation design existing in the prior art, increases small product size and cost.
Description
Technical field
The utility model is related to optical fields, and in particular to a kind of reflective heavy wall light guide and lighting device.
Background technology
Currently, automobile Rear Position Lamp mostly uses guide structure, the advantage of light guide is：LED can largely be reduced
Number, to reduce the price of entire car light；The light that LED light source can be sent out is guided to the light-emitting surface of light guide,
And then LED point light source is made to become uniform area source, thus the use of light guide is more and more.
Application No. is China's applications of CN201420837784.9 to disclose a kind of light guide type automobile tail light, and specifically discloses
The lampshade being matched therewith with car light shell；The lamp housing forms closed space with lampshade, is located at connection in the lampshade
There are LED support, the circle of the LED support one to be equipped with leader tape；The device using high-power LED as light source, while light guide item
Light is conducted, the loss of brightness in transmission process can be effectively reduced, and be fully superimposed by speculum, prevented
There is dark area effect.The final line distribution that realizes is uniformly full, reduces production cost.But above-mentioned light guide type car tail
The reflecting surface and lampshade of lamp use separation design, on the one hand increase production cost, and it is more on the one hand to cause car light component, knot
Structure is complicated, is not easy to reduce volume, since the limitation of reflection type light-emitting structure has certain demand for the height dimension of light-emitting surface,
It is not easy to be formed the heavy wall formula guide structure with ultra-narrow light-emitting surface.
Utility model content
It is complicated in order to solve reflecting surface and lampshade separation design existing in the prior art, increase small product size and
The problem of cost, the utility model proposes a kind of reflective heavy wall light guides and lighting device to solve above-mentioned technical problem.This practicality
Novel technical solution is：
A kind of reflective heavy wall light guide, including at least one reflecting surface, at least one top surface, at least one correction face and extremely
A few light-emitting surface, the top surface connect with reflecting surface, correction face respectively, and the reflecting surface, top surface and correction face are collectively formed
The cavity of one bottom opening.
Further, the optical axis of the top surface and light guide is parallel or angle between the top surface and the optical axis of light guide is small
In 5 degree.
Further, the cross sectional shape of the reflecting surface is parabola shaped, and reflective layer is coated on the reflecting surface, described
The reflectivity of reflective layer is 0.7-0.9.
Further, the reflective layer is aluminium coated.
Further, the correction face is vertically arranged with top surface, and light enters light guide from correction face after reflection and from going out
Smooth surface projects.
Further, multiple diffusion decorative pattern teeth are distributed on the light-emitting surface, the angle β of adjacent diffusion decorative pattern tooth is
60 ° -120 °, adjacent two centre distance L spread between decorative pattern teeth are 1-7mm, and the high H of tooth of the diffusion decorative pattern tooth is 1-
The height S of 3mm, the light-emitting surface are 3-10mm.
Further, the high H of the tooth is 2mm, and the height S of the light-emitting surface is 4mm.
A kind of lighting device, the lighting device include a kind of above-mentioned reflective heavy wall light guide, and the lighting device is also
Including light supply apparatus and wiring board, in the circuit board, the wiring board is arranged in cavity hatch, institute for the light supply apparatus installation
State the focal position that light supply apparatus is located at reflecting surface.
Further, the luminous diffusion angle ɑ of the light supply apparatus is 30 ° -60 °, the light that the light supply apparatus is sent out
After reflective surface correction face is vertically injected in parallel rays.
Further, the lighting device further includes driving plate, the driving plate and circuit board electrical connection.
Based on the above-mentioned technical proposal, the technique effect achieved by the utility model is：
1. the heavy wall light guide of the utility model, while playing conduction light, heavy wall light guide cap is in the outer of light supply apparatus
Portion, plays the role of lampshade, and such lighting device is simple, at low cost；
2. the heavy wall light guide of the utility model reflects the light that light supply apparatus is sent out using the reflecting surface aluminized,
The parallel rays of reflection is parallel with the optical axis of heavy wall light guide or deviation angle between parallel rays and the optical axis of heavy wall light guide
Less than 5 degree, the light extraction efficiency of light supply apparatus can also be rationally adjusted in addition, meet each work(of lighting device especially Vehicle lamp structure
The regulation value requirement of energy；
3. the light out part of the heavy wall light guide of the utility model is equipped with correction face, so that light is correctly corrected by correction face and be
Collimated light beam leaves light-emitting surface, is beneficial to improve and lights uniformity effects；
4. the light-emitting surface of the heavy wall light guide of the utility model is narrow, when being used on lighting device, straight line can be presented
Light effect, facilitate design model, enhancing effect；
5. the heavy wall light guide and lighting device of the utility model can be used for the position in Vehicle lamp structure, such as car light
Lamp, steering indicating light, Brake lamp, Rear Fog Lamp, daytime running lights etc., have a wide range of application.
Description of the drawings
Fig. 1 is the structural schematic diagram of the lighting device of the utility model；
Fig. 2 is the Section A-A figure of Fig. 1, and arrow indicates radiation direction in figure；
Fig. 3 is the portions the B enlarged drawing of Fig. 1.
In figure, 1- heavy wall light guides；11- reflectings surface；The top surfaces 12-；13 correction faces；14- light-emitting surfaces；2- light supply apparatus；3- lines
Road plate；F indicates the optical axis direction of heavy wall light guide.
Specific implementation mode
The content of the utility model is further described below in conjunction with the accompanying drawings.
As shown in Figs. 1-3, a kind of reflective heavy wall light guide, including at least one reflecting surface 11, at least one top surface 12, extremely
A few correction face 13 and at least one light-emitting surface 14, the top surface 12 connect with reflecting surface 11, correction face 13 respectively, described anti-
Penetrate the cavity that a bottom opening is collectively formed in face 11, top surface 12 and correction face 13.
For reflecting the light that light supply apparatus is sent out, the cross sectional shape of the reflecting surface 11 is the reflecting surface 11
It is parabola shaped, reflective layer is coated on the reflecting surface 11, the reflectivity of the reflective layer is 0.7-0.9, it is preferable that described anti-
Photosphere is aluminium coated.The top and top surface 12 of the reflecting surface 11 connect, and bottom surface 15, institute are extended in the lower part of the reflecting surface 11
It states that bottom surface 15 and the top surface 12 are substantially parallel, the groove of cooperation light supply apparatus installation is provided on the bottom surface 15.
The top surface 12 is plane, and the top surface 12 is parallel with the optical axis of heavy wall light guide or the top surface 12 and institute
The angle between the optical axis of heavy wall light guide is stated no more than 5 degree, in the optical axis direction such as figure of heavy wall light guide shown in F.The top surface 12
Connect with the top of at least one reflecting surface 11, the top surface 12 and at least one correction face 13 connect.13 He of the correction face
The top surface 12 is vertical, and the correction face 13 is plane, and the correction face 13 is used to correct the light injected after reflection, makes light
Remain the uniform directive light-emitting surface of parallel rays 14.
As shown in figure 3, the light after reflective surface enters from correction face 13, projected from light-emitting surface 14, the light extraction
The height S in face 14 is 3-10mm, preferably 4mm.Multiple diffusion decorative pattern teeth 141 are evenly distributed on the light-emitting surface 14, it is described
The angular range for spreading the angle β of decorative pattern tooth 141 is 60 ° -120 °, the centre distance between two neighboring diffusion decorative pattern tooth 141
The high H of tooth for L, the ranging from 1-7mm of L, the diffusion decorative pattern tooth 141 is 1-3mm, and the high H of tooth is preferably 2mm.The light-emitting surface
14 is smaller with the height of diffusion decorative pattern tooth 141, and the effect of a line is will present when luminous.Light is through spreading 141 folding of decorative pattern tooth
It penetrates, is emitted in certain angular range, meet the irradiating angle of the basic demand to lighting device, especially car light
It is general to require.
A kind of lighting device, including heavy wall light guide 1, further include light supply apparatus 2 and wiring board 3, and the light supply apparatus 2 is arranged
In assist side 3, the wiring board 3 is arranged the cavity hatch in heavy wall light guide 1, and the light supply apparatus 2 is towards inside cavity
Setting, the installation site of the light supply apparatus 2 are preferably located at the focal position of the reflecting surface 11 of heavy wall light guide 1, such light source
The light that device 2 projects may be implemented to be totally reflected after reflecting surface 11, and most of light is parallel after reflective surface
Light, direction directive correction of the parallel rays along parallel with optical axis direction F or angle with optical axis direction F less than 5 degree
Face 13, the correction face 13 correct light and remain parallel rays directive light-emitting surface 14, projected by light-emitting surface 14.
The light supply apparatus 2 is the light supply apparatus that can send out light, and the light supply apparatus 2 is preferably LED light, the light source dress
The luminous diffusion angle for setting 2 is ɑ, and the ɑ is between the horizontal plane where the light sent out of light supply apparatus 2 and light supply apparatus 2
Angle, ranging from 30 ° -60 ° of the ɑ.
The lighting device further includes driving plate 17, and the driving plate 17 and wiring board 3 are electrically connected, and the driving plate 17 is used
Power supply and light supply apparatus 2 is controlled in providing light supply apparatus 2.Preferably, the driving plate 17 is arranged in the upper of heavy wall light guide 1
Portion, and it is parallel with the top surface of heavy wall light guide 1 12.
Above-mentioned lighting device in use, is worked by the light supply apparatus 2 on 17 control circuit board 3 of driving plate, hair
Go out light, light is radiated on the reflecting surface 11 of heavy wall light guide 1, at parallel rays, the directional light after the reflection of reflecting surface 11
Direction directive of the line along parallel with optical axis direction F or angle with optical axis direction F less than 5 degree corrects face 13, the correction face
13 correction light remain parallel rays directive light-emitting surface 14, are projected by light-emitting surface 14.The height S of the light-emitting surface 14 compared with
It is small, so visually showing the effect of a line.
The heavy wall light guide and lighting device of the utility model can be used for position lamp in Vehicle lamp structure, such as car light, turn
To lamp, Brake lamp, Rear Fog Lamp, daytime running lights etc., have a wide range of application, effect is good.
The embodiment of the utility model is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
The above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Objective under the premise of make a variety of changes.
Claims (10)
1. a kind of reflective heavy wall light guide, which is characterized in that including at least one reflecting surface (11), at least one top surface (12),
At least one correction face (13) and at least one light-emitting surface (14), the top surface (12) respectively with reflecting surface (11), correction face
(13) connect, the cavity of a bottom opening is collectively formed in the reflecting surface (11), top surface (12) and correction face (13).
2. a kind of reflective heavy wall light guide as described in claim 1, which is characterized in that the optical axis of top surface (12) and light guide
Angle of the parallel or described top surface (12) between the optical axis of light guide is less than 5 degree.
3. a kind of reflective heavy wall light guide as claimed in claim 1 or 2, which is characterized in that the section of the reflecting surface (11)
Shape is parabola shaped, reflective layer is coated on the reflecting surface (11), the reflectivity of the reflective layer is 0.7-0.9.
4. a kind of reflective heavy wall light guide as claimed in claim 3, which is characterized in that the reflective layer is aluminium coated.
5. a kind of reflective heavy wall light guide as described in claim 1 or 4, which is characterized in that the correction face (13) and top surface
(12) it is vertically arranged, light enters from correction face (13) and projected from light-emitting surface (14) after reflection.
6. a kind of reflective heavy wall light guide as claimed in claim 5, which is characterized in that be distributed on the light-emitting surface (14) more
The angle β of a diffusion decorative pattern tooth (141), diffusion decorative pattern tooth (141) is 60 ° -120 °, adjacent two diffusion decorative pattern teeth (141)
Between centre distance L be 1-7mm, it is described diffusion decorative pattern tooth (141) the high H of tooth be 1-3mm, the height of the light-emitting surface (14)
S is 3-10mm.
7. a kind of reflective heavy wall light guide as claimed in claim 6, which is characterized in that the high H of tooth is 2mm, the light extraction
The height S in face (14) is 4mm.
8. a kind of lighting device, which is characterized in that the lighting device includes as claim 1-7 any one of them is a kind of anti-
Formula heavy wall light guide is penetrated, the lighting device further includes light supply apparatus (2) and wiring board (3), and light supply apparatus (2) installation is online
On road plate (3), the wiring board (3) is arranged in cavity hatch, and the light supply apparatus (2) is located at the focus position of reflecting surface (11)
It sets.
9. a kind of lighting device as claimed in claim 8, which is characterized in that the luminous diffusion angle ɑ of the light supply apparatus (2)
It it is 30 ° -60 °, the light that the light supply apparatus (2) sends out vertically injects correction face after reflecting surface (11) reflection in parallel rays
(13)。
10. a kind of lighting device as claimed in claim 8 or 9, which is characterized in that the lighting device further includes driving plate,
The driving plate is electrically connected with wiring board (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721686793.2U CN207674352U (en) | 2017-12-06 | 2017-12-06 | A kind of reflective heavy wall light guide and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721686793.2U CN207674352U (en) | 2017-12-06 | 2017-12-06 | A kind of reflective heavy wall light guide and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207674352U true CN207674352U (en) | 2018-07-31 |
Family
ID=62968213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721686793.2U Active CN207674352U (en) | 2017-12-06 | 2017-12-06 | A kind of reflective heavy wall light guide and lighting device |
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| CN (1) | CN207674352U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571707A (en) * | 2017-12-06 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of reflective heavy wall light guide and lighting device |
| CN111536484A (en) * | 2020-04-21 | 2020-08-14 | 东风汽车集团有限公司 | Light guide pipe, combined type headlamp and vehicle |
| CN111561683A (en) * | 2020-06-08 | 2020-08-21 | 东风汽车集团有限公司 | High-efficiency high-uniformity automobile position lamp arrangement structure |
| CN111999887A (en) * | 2020-09-07 | 2020-11-27 | 马瑞利汽车零部件(芜湖)有限公司 | Design method of thick-wall optical system comprising diffusion holes for eliminating dark areas at chamfer |
-
2017
- 2017-12-06 CN CN201721686793.2U patent/CN207674352U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571707A (en) * | 2017-12-06 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of reflective heavy wall light guide and lighting device |
| CN111536484A (en) * | 2020-04-21 | 2020-08-14 | 东风汽车集团有限公司 | Light guide pipe, combined type headlamp and vehicle |
| CN111561683A (en) * | 2020-06-08 | 2020-08-21 | 东风汽车集团有限公司 | High-efficiency high-uniformity automobile position lamp arrangement structure |
| CN111999887A (en) * | 2020-09-07 | 2020-11-27 | 马瑞利汽车零部件(芜湖)有限公司 | Design method of thick-wall optical system comprising diffusion holes for eliminating dark areas at chamfer |
| CN111999887B (en) * | 2020-09-07 | 2022-04-08 | 马瑞利汽车零部件(芜湖)有限公司 | Design method of thick-wall optical system comprising diffusion holes for eliminating dark areas at chamfer |
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