CN105465709A - LED car lamp - Google Patents
LED car lamp Download PDFInfo
- Publication number
- CN105465709A CN105465709A CN201410457314.4A CN201410457314A CN105465709A CN 105465709 A CN105465709 A CN 105465709A CN 201410457314 A CN201410457314 A CN 201410457314A CN 105465709 A CN105465709 A CN 105465709A
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- light
- guide plate
- light guide
- led
- car lamp
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
An LED car lamp comprises a first LED light source, a second LED light source, a first light guide plate, a second light guide plate and a light shielding layer. The first light guide plate is optically coupled to the first LED light source and used for guiding light emitted by the first LED light source so as to produce a first light type. The second light guide plate is optically coupled to the second LED light source and used for guiding light emitted by the second LED light source so as to produce a second light type. The outgoing direction of the light in the second light type is identical to the outgoing direction of the light in the first light type. The light shielding layer is located between the first light guide plate and the second light guide plate and can prevent the light from being propagated between the first light guide plate and the second light guide plate. According to the LED car lamp, a reflecting cover and a light shielding sheet of a traditional car lamp are replaced with the light guide plates, the light of the light sources cannot be shielded by the light guide plates, and therefore the light utilization rate is increased; by turning on or turning off the first LED light source and the second LED light source, switching between the low-beam light type and the high-beam light type can be completed, and control is more flexible.
Description
Technical field
The present invention relates to a kind of light fixture, particularly relates to a kind of LED car lamp for car lighting.
Background technology
Light emitting diode (lightemittingdiode, LED), as a kind of light emitting source efficiently, has the various features such as environmental protection, power saving, life-span length and is applied to various field widely.
Traditional car light comprises a light source, reflection shield, anti-dazzling screen and projection lens.Described anti-dazzling screen is arranged at the dead ahead of light source, the light that light source sends is anti-dazzling screen described in directive after reflection shield reflection, just can be produced meet the high beam light type and dipped headlights light type that various countries' traffic law specifies by the position of mobile described anti-dazzling screen facing light sources.
But the some light produced due to light source is blocked that sheet blocks and without projection lens outgoing, this can reduce light utilization ratio undoubtedly.Meanwhile, traditional car light needs to drive anti-dazzling screen action just can complete switching between low beam light type and far lamp light type by auxiliary equipment, controls inconvenient.
Summary of the invention
In view of this, be necessary to provide a kind of light extraction efficiency high, control LED car lamp easily.
A kind of LED car lamp, comprising: one first LED light source; One second LED light source; With one first light guide plate of this first LED light source optical coupled, this first light guide plate is for guiding this light that the first LED light source sends to produce one first predetermined light type; With one second light guide plate of this second LED light source optical coupled, this second light guide plate is for guiding this light that the second LED light source sends to produce one second predetermined light type, and the second light type is identical with the exit direction of light in the first light type; One light barriers, this light barriers is between this first light guide plate and second light guide plate, and this light barriers can prevent light from propagating between the first light guide plate and the second light guide plate.
Compared with prior art, the reflection shield of traditional car light and anti-dazzling screen are replaced with light guide plate by LED car lamp of the present invention, and light guide plate can not block the light that light source sends, thus effectively improves light utilization; By can complete the switching between low beam light type and far lamp light type to the On/Off of first, second LED light source, control mode is more flexible.
Accompanying drawing explanation
Fig. 1 is the combination schematic diagram of LED car lamp in first embodiment of the invention, for clarity, prism group is omitted in figure.
Fig. 2 is the combination schematic diagram of another angle of LED car lamp shown in Fig. 1.
Fig. 3 be in the LED car lamp of second embodiment of the invention combination schematic diagram.
Main element symbol description
| First LED light source | 10 |
| Second LED light source | 20 |
| First light guide plate | 30 |
| Incidence surface | 31、41 |
| Exiting surface | 32、42 |
| Bottom surface | 33、43 |
| Wedge-shaped part | 35 |
| Side | 36 |
| Second light guide plate | 40 |
| Groove | 45 |
| Light barriers | 50 |
| Projection lens | 60 |
| Prism group | 70 |
| Prismatic lens | 71、72 |
| Reflector plate | 80 |
| LED car lamp | 100、100a |
| First pit | 331 |
| Second pit | 431 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Please refer to Fig. 1-2, the LED car lamp 100 of first embodiment of the invention comprises one first LED light source 10, one second LED light source 20, with one first light guide plate 30 of this first LED light source 10 optical coupled, with one second light guide plate 40 of this second LED light source 20 optical coupled, light barriers 50 between this first light guide plate 30 and second light guide plate 40, be positioned at the projection lens 60 of this first light guide plate 30 and the second light guide plate 40 over top, be positioned at the reflector plate 80 of this first light guide plate 30 and the second light guide plate 40 bottom part down, and the prism group 70 between the top and this projection lens 60 of this first light guide plate 30 and the second light guide plate 40.This first light guide plate 30 is for guiding this light that the first LED light source 10 sends to produce one first predetermined light type.This second light guide plate 40 is for guiding this light that the second LED light source 20 sends to produce one second predetermined light type.
This first light guide plate 30 and the second light guide plate 40 are interconnected.This first light guide plate 30 and this second light guide plate 40 are all in rectangular-shaped and be connected setting side by side.This first light guide plate 30 have an incidence surface 31, with this incidence surface 31 exiting surface 32 connected vertically and the bottom surface 33 relative with this exiting surface 32.This second light guide plate 40 have an incidence surface 41, with this incidence surface 41 exiting surface 42 connected vertically and the bottom surface 43 relative with this exiting surface 42.This first light guide plate 30 is equal with the thickness of the second light guide plate 40.The exiting surface 32 of this first light guide plate 30 and the exiting surface 42 of the second light guide plate 40 to be positioned in same level and to be interconnected.The bottom surface 33 of this first light guide plate 30 and the bottom surface 43 of the second light guide plate 40 to be positioned in same level and to be interconnected.
Extension one wedge-shaped part 35 is protruded towards the second light guide plate 40 in the side 36 that this first light guide plate 30 adjoins this second light guide plate 40, and this second light guide plate 40 is to the wedge-shaped part 35 of the first light guide plate 30 forming a groove 45.The wedge-shaped part 35 of this first light guide plate 30 is mutually chimeric with the groove 45 of this second light guide plate 40, makes the first light guide plate 30 together with the second light guide plate 40 compact siro spinning technology.
The concrete shape of this first light guide plate 30 and the second light guide plate 40 can be made adjustment according near, the far lamp optical field distribution of various countries' traffic law regulation, and is not limited only to the shape in the embodiment of the present invention.
This first LED light source 10 is positioned at the side of this first light guide plate 30 and the incidence surface 31 towards this first light guide plate 30 is arranged.This second LED light source 20 is positioned at the side of this second light guide plate 40 and the incidence surface 41 towards this second light guide plate 40 is arranged.This first LED light source 10 is positioned at the relative both sides of this light barriers 50 with the second LED light source 20.This first LED light source 10 and the second LED light source 20 are oppositely arranged.In the present embodiment, this first LED light source 10 and the second LED light source 20 include the some white light emitting diodes linearly arranged.
This light barriers 50 is positioned at this first light guide plate 30 and the second light guide plate 40 joint.This light barriers 50 can stop by the light of the first light guide plate 30 directive second light guide plate 40 and the light by the second light guide plate 40 directive first light guide plate 30.In the present embodiment, the length of this first light guide plate 30 is long compared with the length of the second light guide plate 40, and this light barriers 50 covers this first light guide plate 30 and adjoins on the whole side 36 of this second light guide plate 40.Described light barriers 50 is made up of material that is light tight or that have a reflective character, and such as this light barriers 50 can be formed by the metal with reflective character.
The bottom surface 33 of this first light guide plate 30 is provided with some first pits 331 for scattered beam.The bottom surface 43 of this second light guide plate 40 is provided with some second pits 431 for scattered beam.Understandably, the distributed number of this first pit 331 on bottom surface 33 and arrange density and the distributed number of the second pit 431 on bottom surface 43 and arrangement density can adjust according to the bright dipping demand of reality.In other embodiments, in order to the light on the bottom surface 33 of this first light guide plate 30 of scattering directive and the bottom surface 43 of the second light guide plate 40, also some salient points can be formed by the mode of screen painting on the bottom surface 33 of the first light guide plate 30 and the bottom surface 43 of the second light guide plate 40.
This prism group 70 is positioned at the top of this first light guide plate 30 exiting surface 32 and the second light guide plate 40 exiting surface 42.The light penetrated from the exiting surface 32 of this first light guide plate 30 and the exiting surface 42 of the second light guide plate 40 converges and then this projection lens 60 of directive through the refraction of this prism group 70, to strengthen the brightness of converging light.In the present embodiment, described prism group 70 comprises two prismatic lenses 71,72, prismatic lens 71,72 includes the some prisms be arranged in array, prism on described prismatic lens 71,72 is 90 degree of cross arrangements mutually, to converge the light of the first light guide plate 30 and the second light guide plate 40 outgoing on horizontal and vertical respectively.
In embodiments of the present invention, when the first LED light source 10 is lit, the light that first LED light source 10 sends to be injected this first light guide plate 30 from incidence surface 31 and is penetrated this first light guide plate 30 from exiting surface 32, wherein the some light of the bottom surface 33 of this first light guide plate 30 of directive is by 331 scatterings of the first pit, and the small part light reflected by the bottom surface 33 of the first light guide plate 30 is reflected back in the first light guide plate 30 by reflector plate 80.Converge and then this projection lens 60 of directive from this prism group 70 of light refraction of this first light guide plate 30 outgoing, light is projeced on road through projection lens 60 and forms the first predetermined light type, i.e. dipped headlights light distribution.
When the second LED light source 20 is lit, the light that second LED light source 20 sends to be injected this second light guide plate 40 from incidence surface 41 and is penetrated this second light guide plate 40 from exiting surface 42, wherein the some light of the bottom surface 43 of this second light guide plate 40 of directive is by 431 scatterings of the second pit, and the small part light reflected by the bottom surface 43 of the second light guide plate 40 is reflected back in the second light guide plate 40 by reflector plate 80.Converge and then this projection lens 60 of directive from this prism group 70 of light refraction of this second light guide plate 40 outgoing, light is projeced on road through projection lens 60 and forms the second predetermined light type.
When the first LED light source 10 and the second LED light source 20 are lighted simultaneously, LED car lamp 100 can form the first predetermined light type and the second light type on road, and this first light type and the second light type connect into a continuous light field on road, i.e. high beam light distribution.In other words, when the first LED light source 10 is lighted separately, the light that this LED car lamp 100 sends can project formation one first light type on road, i.e. dipped headlights light type; When the first LED light source 10, second LED light source 20 is lighted simultaneously, the light that this LED car lamp 100 sends can project formation first light type and the second light type on road, this first light type and the second light type are connected to form a continuous print optical field distribution on road, i.e. high beam light distribution.
Refer to Fig. 3, with the LED car lamp 100 in the first embodiment differently, the incidence surface 31 of the first light guide plate 30 and incidence surface 41 all indentations of the second light guide plate 40 in the LED car lamp 100a of second embodiment of the invention, the light that this first LED light source 10 sends to be injected in this first light guide plate 30 via jagged incidence surface 31 and towards exiting surface 32 and bottom surface 33 wide-angle deviation, and the light that this second LED light source 20 sends to be injected in this second light guide plate 40 via jagged incidence surface 41 and towards exiting surface 42 and bottom surface 43 wide-angle deviation.
Compared with prior art, the reflection shield of traditional car light and anti-dazzling screen are replaced with the first light guide plate 30 and the second light guide plate 40 by LED car lamp 100 of the present invention, 100a, first light guide plate 30 can not block the light that the first LED light source 10 sends, second light guide plate 40 can not block the light that the second LED light source 20 sends, thus effectively improves light utilization; By can complete the switching between low beam light type and far lamp light type to the On/Off of the first LED light source 10 and the second LED light source 20, control mode is more flexible.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (10)
1. a LED car lamp, comprising:
One first LED light source;
One second LED light source;
With one first light guide plate of this first LED light source optical coupled, this first light guide plate is for guiding this light that the first LED light source sends to produce one first predetermined light type;
With one second light guide plate of this second LED light source optical coupled, this second light guide plate is for guiding this light that the second LED light source sends to produce one second predetermined light type, and the second light type is identical with the exit direction of light in the first light type;
One light barriers, this light barriers is between this first light guide plate and second light guide plate, and this light barriers can prevent the propagation of light between the first light guide plate and the second light guide plate.
2. LED car lamp as claimed in claim 1, it is characterized in that: this first light guide plate and the second light guide plate are interconnected, this light barriers is positioned at this first light guide plate and the second light guide plate joint.
3. LED car lamp as claimed in claim 2, it is characterized in that: this first, second light guide plate is rectangular-shaped, this first light guide plate and the second light guide plate are arranged side by side.
4. LED car lamp as claimed in claim 3, it is characterized in that: the outwardly extension one in the side wedge-shaped part that this first light guide plate adjoins this second light guide plate, this second light guide plate is to the wedge-shaped part of the first light guide plate offering a groove, and the wedge-shaped part of this first light guide plate is mutually chimeric with the groove of this second light guide plate.
5. LED car lamp as claimed in claim 3, it is characterized in that: this first, second light guide plate all has an incidence surface and an exiting surface connected vertically with this incidence surface, the light of this first LED light source to be injected into the first light guide plate from the incidence surface of the first light guide plate and to penetrate the first light guide plate from the exiting surface of the first light guide plate, and the light of this second LED light source to be injected into the second light guide plate from the incidence surface of the second light guide plate and to penetrate the second light guide plate from the exiting surface of the second light guide plate.
6. LED car lamp as claimed in claim 5, is characterized in that: the exiting surface of this first, second light guide plate to be positioned in same level and to be interconnected.
7. LED car lamp as claimed in claim 5, it is characterized in that: described first light guide plate has the bottom surface be oppositely arranged with its exiting surface, this second light guide plate all has the bottom surface be oppositely arranged with its exiting surface, and the bottom surface of this first, second light guide plate is provided with the some pits for scattered beam.
8. LED car lamp as claimed in claim 5, is characterized in that: also comprise the projection lens be positioned at above first, second light guide plate exit facet, and the light of this first, second light guide plate outgoing is projeced on road after this projection lens converges.
9. LED car lamp as claimed in claim 5, is characterized in that: in described first light guide plate and the second light guide plate, at least the incidence surface indentation of one of them is arranged.
10. LED car lamp as claimed in claim 1, is characterized in that: described light barriers is made up of material that is light tight or that have a reflective character.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457314.4A CN105465709A (en) | 2014-09-10 | 2014-09-10 | LED car lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457314.4A CN105465709A (en) | 2014-09-10 | 2014-09-10 | LED car lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465709A true CN105465709A (en) | 2016-04-06 |
Family
ID=55603703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410457314.4A Pending CN105465709A (en) | 2014-09-10 | 2014-09-10 | LED car lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465709A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018000285A1 (en) * | 2016-06-29 | 2018-01-04 | 深圳市一窗科技有限责任公司 | Lighting fixture |
| WO2018129841A1 (en) * | 2017-01-12 | 2018-07-19 | 上海小糸车灯有限公司 | Transparent photoconductor having light shielding function, and application thereof |
| CN108980777A (en) * | 2017-05-31 | 2018-12-11 | 大众汽车有限公司 | Baffle component for vehicle and the vehicle with baffle component |
| CN111578229A (en) * | 2020-05-25 | 2020-08-25 | 安徽艳阳电气集团有限公司 | Light guide mechanism of lamp |
| CN111656089A (en) * | 2018-02-08 | 2020-09-11 | 阿莫善斯有限公司 | Rear lamp module for vehicle and rear combination lamp having the same |
| WO2021098753A1 (en) * | 2019-11-22 | 2021-05-27 | 市光法雷奥（佛山）汽车照明系统有限公司 | Light guide assembly, vehicle light and vehicle |
-
2014
- 2014-09-10 CN CN201410457314.4A patent/CN105465709A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018000285A1 (en) * | 2016-06-29 | 2018-01-04 | 深圳市一窗科技有限责任公司 | Lighting fixture |
| WO2018129841A1 (en) * | 2017-01-12 | 2018-07-19 | 上海小糸车灯有限公司 | Transparent photoconductor having light shielding function, and application thereof |
| CN108980777A (en) * | 2017-05-31 | 2018-12-11 | 大众汽车有限公司 | Baffle component for vehicle and the vehicle with baffle component |
| CN111656089A (en) * | 2018-02-08 | 2020-09-11 | 阿莫善斯有限公司 | Rear lamp module for vehicle and rear combination lamp having the same |
| WO2021098753A1 (en) * | 2019-11-22 | 2021-05-27 | 市光法雷奥（佛山）汽车照明系统有限公司 | Light guide assembly, vehicle light and vehicle |
| US11815242B2 (en) | 2019-11-22 | 2023-11-14 | Valeo Vision | Light guide assembly, vehicle light and vehicle |
| CN111578229A (en) * | 2020-05-25 | 2020-08-25 | 安徽艳阳电气集团有限公司 | Light guide mechanism of lamp |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |
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| WD01 | Invention patent application deemed withdrawn after publication |