CN108571707A - 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
- Publication number
- CN108571707A CN108571707A CN201711274328.2A CN201711274328A CN108571707A CN 108571707 A CN108571707 A CN 108571707A CN 201711274328 A CN201711274328 A CN 201711274328A CN 108571707 A CN108571707 A CN 108571707A
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- China
- Prior art keywords
- light
- light guide
- heavy wall
- lighting device
- reflective
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 238000009792 diffusion process Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
- F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/15—Strips of light sources
-
- 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
- F21S43/2605—Refractors
- F21S43/2621—Refractors characterised by the properties of the light beam shaping surface
- F21S43/26211—Refractors characterised by the properties of the light beam shaping surface redirecting, i.e. substantially only changing light propagation direction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates 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 present invention relates 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.
Invention 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, a kind of reflective heavy wall light guide of present invention proposition and lighting device solve above-mentioned technical problem.The skill of the present invention
Art scheme 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 present invention is：
1. the heavy wall light guide of the present invention, while playing conduction light, heavy wall light guide cap rises in the outside of light supply apparatus
To the effect of lampshade, such lighting device is simple, at low cost；
2. the heavy wall light guide of the present invention reflects the light that light supply apparatus is sent out using the reflecting surface aluminized, reflect
Parallel rays it 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 is less than 5
Degree, can also rationally adjust the light extraction efficiency of light supply apparatus, meet each function of lighting device especially Vehicle lamp structure in addition
The requirement of regulation value；
3. the light out part of the heavy wall light guide of the present invention is equipped with correction face, it is parallel so that light is correctly corrected by correction face
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 present invention is narrow, when being used on lighting device, the point of straight line can be presented
Bright effect facilitates design model, enhancing effect；
5. the heavy wall light guide and lighting device of the present invention 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.
Description of the drawings
Fig. 1 is the structural schematic diagram of the lighting device of the present invention；
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
Present disclosure 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 present invention can be used for position lamp in Vehicle lamp structure, such as car light, steering indicating light,
Brake lamp, Rear Fog Lamp, daytime running lights etc., have a wide range of application, and effect is good.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be in the premise for not departing from spirit of the invention
Under 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274328.2A CN108571707A (en) | 2017-12-06 | 2017-12-06 | A kind of reflective heavy wall light guide and lighting device |
| PCT/CN2018/119037 WO2019109895A1 (en) | 2017-12-06 | 2018-12-04 | Reflective-type thick wall light guide and illumination apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274328.2A CN108571707A (en) | 2017-12-06 | 2017-12-06 | A kind of reflective heavy wall light guide and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571707A true CN108571707A (en) | 2018-09-25 |
Family
ID=63575813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274328.2A Pending CN108571707A (en) | 2017-12-06 | 2017-12-06 | A kind of reflective heavy wall light guide and lighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108571707A (en) |
| WO (1) | WO2019109895A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109895A1 (en) * | 2017-12-06 | 2019-06-13 | 常州星宇车灯股份有限公司 | Reflective-type thick wall light guide and illumination apparatus |
| CN110762473A (en) * | 2019-10-30 | 2020-02-07 | 华域视觉科技(上海)有限公司 | Car light structure and car light |
| CN111947102A (en) * | 2020-09-11 | 2020-11-17 | 华域视觉科技(上海)有限公司 | Light guide end structure for preventing light guide end bright spots |
| CN112879865A (en) * | 2021-01-20 | 2021-06-01 | 大茂伟瑞柯车灯有限公司 | Low-cost thick-wall light guide structure for daytime running lamp and steering lamp |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013780A (en) * | 2022-05-30 | 2022-09-06 | 上汽通用汽车有限公司 | Illumination structure and vehicle |
| CN118110943B (en) * | 2024-04-30 | 2024-07-26 | 浙江嘉利（丽水）工业股份有限公司 | Adopt luminous assembly of diffusion formula thick wall light guide |
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| FR2941785B1 (en) * | 2009-02-05 | 2011-04-15 | Valeo Vision Sas | OPTICAL DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE, SUCH AS A LIGHTING OR SIGNALING DEVICE |
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| 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 |
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- 2017-12-06 CN CN201711274328.2A patent/CN108571707A/en active Pending
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- 2018-12-04 WO PCT/CN2018/119037 patent/WO2019109895A1/en active Application Filing
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| CN103851542A (en) * | 2012-11-29 | 2014-06-11 | 法雷奥照明公司 | Light guide for an optical device, notably for lighting and/or signaling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019109895A1 (en) * | 2017-12-06 | 2019-06-13 | 常州星宇车灯股份有限公司 | Reflective-type thick wall light guide and illumination apparatus |
| CN110762473A (en) * | 2019-10-30 | 2020-02-07 | 华域视觉科技(上海)有限公司 | Car light structure and car light |
| CN111947102A (en) * | 2020-09-11 | 2020-11-17 | 华域视觉科技(上海)有限公司 | Light guide end structure for preventing light guide end bright spots |
| CN112879865A (en) * | 2021-01-20 | 2021-06-01 | 大茂伟瑞柯车灯有限公司 | Low-cost thick-wall light guide structure for daytime running lamp and steering lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019109895A1 (en) | 2019-06-13 |
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