CN103032795A - Light emitting diode (LED) lower-beam illumination lamp for car - Google Patents
Light emitting diode (LED) lower-beam illumination lamp for car Download PDFInfo
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- CN103032795A CN103032795A CN201210527582XA CN201210527582A CN103032795A CN 103032795 A CN103032795 A CN 103032795A CN 201210527582X A CN201210527582X A CN 201210527582XA CN 201210527582 A CN201210527582 A CN 201210527582A CN 103032795 A CN103032795 A CN 103032795A
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- reflection shield
- main body
- led
- shield main
- reflectance coating
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Abstract
The invention relates to a light emitting diode (LED) lower-beam illumination lamp for a car, and the LED lower-beam illumination lamp comprises an ellipsoidal reflection cover body, wherein an annular copper heat radiating fin is arranged outside the ellipsoidal reflection cover body; an LED illumination unit is arranged nearby a focal point on the bottom of the ellipsoidal reflection cover body; a focusing lens is arranged above a focal point on the top of the ellipsoidal reflection cover body, and the focal point on the top of the ellipsoidal reflection cover body is overlapped with that of the focusing lens; and the inner surface of the ellipsoidal reflection cover body is provided with a reflection coating. Through the structure design and the design of the coating structural components, the emitted light area is large, and the intensity is moderate; and the lamp has the advantages of simplicity and reliability in structure, good heat radiation effect, long service life and high light emitting efficiency.
Description
Technical field
The invention belongs to the technical field of automotive lighting, in particular, the present invention relates to a kind of vapour automobile-used LED lower beam illumination lamp.
Background technology
Automobile headlamp light source market is mainly occupied by Halogen lamp LED and xenon lamp for a long time, but these two kinds of traditional lighting lamps all exist fatal weakness in various aspects such as brightness, life-span, volume, heating degree, colour temperature adjustment and robustnesses.In recent years, along with improving gradually and the gradually decline of cost of the luminous efficiency of light emitting diode (LED), semiconductor lighting becomes the development trend of modern illumination gradually, be described as after incandescent lamp, fluorescent lamp and electricity-saving lamp the 4th generation lighting electric light source, be called as " 21 century green light source ".LED is as new type light source, has long, energy-conservation, the advantage such as light quality is good, simple in structure, the response fast, voltage is low, volume is little of life-span.
Each traditional lighting major company of the world is also in the research work that is stepping up to carry out the LED illumination and use, and LED is as application such as the taillight of automobile, body light, brake lamp maturation and obtain very good effect and economic benefit.But the headlight as automobile is used also seldom, even rests on the concept car operational phase, and tracing it to its cause mainly is to need to improve the LED luminous efficiency.The technology such as optical design, fansink designs, reflector design by car headlamp be badly in need of at present increase the radiating efficiency of car light simultaneously, to guarantee the normal junction temperature of LED, make automobile dipped headlight have the output light flux of stability and high efficiency.
Summary of the invention
In order to solve the above-mentioned technical problem that exists in the prior art, the object of the present invention is to provide a kind of vapour automobile-used LED lower beam illumination lamp, thereby the present invention puts forth effort to improve the reflection of LED light and the luminous flux that projection efficiency improves automobile dipped headlight; Increase simultaneously the radiating efficiency of car light, so that automobile dipped headlight has the output light flux of stability and high efficiency.
In order to solve the problems of the technologies described above and realize above-mentioned purpose, the present invention takes following technical scheme:
A kind of vapour automobile-used LED lower beam illumination lamp comprises elliposoidal reflection shield main body, and the outside of elliposoidal reflection shield main body is provided with the copper radiating fin of annular; Be provided with the LED lighting unit near being positioned at the focus of elliposoidal reflection shield bottom part body; The focus top that is positioned at elliposoidal reflection shield main body top is provided with condenser lens, and the focus at elliposoidal reflection shield main body top overlaps with the focus of condenser lens; The inner surface that it is characterized in that elliposoidal reflection shield main body is provided with reflectance coating.
The inner surface of described elliposoidal reflection shield main body from inside to outside is disposed with the first reflectance coating and the second reflectance coating, wherein the first reflectance coating is the thick AgCuIn alloy coat of 5-15nm, the second reflectance coating is the thick AlTiIn alloy coat of 20-50nm, in the wherein said AgCuIn alloy coat, the content of Cu is 2-3wt%, the content of In is 3-5wt%, and surplus is Ag; In the described AlTiIn alloy coat, the content of Ti is 5-8wt%, and the content of In is 1-2wt%, and surplus is Al.Described reflectance coating can prepare by magnetron sputtering or ALD deposition process.
Described condenser lens inner surface has ARC, and the thickness of ARC is 20-50nm, and by the ZnO of 30-55wt%, the Ga of 10-15wt%
2The SnO of O3 and surplus
2Form.This ARC can be by sputter ZnO, Ga
2O3, SnO
2Target deposition obtain.
The present invention compared with prior art the present invention has following beneficial effect:
(1) light that the LED luminescence unit sends in the light fixture of the present invention after the reflection through elliposoidal reflection shield main body, converges in the focus place of condenser lens, and by parallel emission behind the condenser lens, so that the light that whole light fixture sends is directional light.
(2) inner surface has the 1st and the 2nd reflectance coating in the light fixture of the present invention, no matter all has excellent reflecting effect for visible light and black light, improved LED reflection of light efficient, but also reduced Optical Absorption, reduced the heat absorption of elliposoidal reflection shield main body, and pass through the thermolysis of the copper radiating fin of cooperation elliposoidal reflection shield main body outside, so that the heat of elliposoidal reflection shield body interior can effectively conduct, solved a heat radiation difficult problem, especially further reduce the optical density that absorbs by the special reflectance coating design of adding In, alleviated the pressure of heat radiation.
(3) condenser lens inner surface of the present invention also has and has used Ga
2O
3ARC, further improved the emissivity of light.
The specific embodiment
Below with reference to specific embodiment technical scheme of the present invention is further elaborated.
Embodiment 1
A kind of vapour automobile-used LED lower beam illumination lamp comprises elliposoidal reflection shield main body, and the outside of elliposoidal reflection shield main body is provided with the copper radiating fin of annular; Be provided with the LED lighting unit near being positioned at the focus of elliposoidal reflection shield bottom part body; The focus top that is positioned at elliposoidal reflection shield main body top is provided with condenser lens, and the focus at elliposoidal reflection shield main body top overlaps with the focus of condenser lens; The inner surface of described elliposoidal reflection shield main body from inside to outside is disposed with the first reflectance coating and the second reflectance coating, wherein the first reflectance coating is the thick AgCuIn alloy coat of 5nm, the second reflectance coating is the thick AlTiIn alloy coat of 20nm, in the wherein said AgCuIn alloy coat, the content of Cu is 3wt%, the content of In is 3wt%, and surplus is Ag; In the described AlTiIn alloy coat, the content of Ti is 8wt%, and the content of In is 1wt%, and surplus is Al.Described condenser lens inner surface has ARC, and the thickness of ARC is 20nm, and by the ZnO of 30wt%, the Ga of 15wt%
2The SnO of O3 and surplus
2Form.
Each coating in the present embodiment can prepare by conventional physical vapour deposition (PVD) (PVD) or Atomic layer deposition method (ALD), is not giving unnecessary details at this.The light fixture of present embodiment by the design of structural design and coating structure component so that the light area that penetrates is large moderate strength, and the light fixture of present embodiment have simple and reliable for structure, good heat dissipation effect, the advantage that long service life and luminous efficiency are high.
Embodiment 2
A kind of vapour automobile-used LED lower beam illumination lamp comprises elliposoidal reflection shield main body, and the outside of elliposoidal reflection shield main body is provided with the copper radiating fin of annular; Be provided with the LED lighting unit near being positioned at the focus of elliposoidal reflection shield bottom part body; The focus top that is positioned at elliposoidal reflection shield main body top is provided with condenser lens, and the focus at elliposoidal reflection shield main body top overlaps with the focus of condenser lens; The inner surface of described elliposoidal reflection shield main body from inside to outside is disposed with the first reflectance coating and the second reflectance coating, wherein the first reflectance coating is the thick AgCuIn alloy coat of 15nm, the second reflectance coating is the thick AlTiIn alloy coat of 50nm, in the wherein said AgCuIn alloy coat, the content of Cu is 3wt%, the content of In is 3wt%, and surplus is Ag; In the described AlTiIn alloy coat, the content of Ti is 5wt%, and the content of In is 1wt%, and surplus is Al.Described condenser lens inner surface has ARC, and the thickness of ARC is 50nm, and by the ZnO of 55wt%, the Ga of 10wt%
2The SnO of O3 and surplus
2Form.
The light fixture of present embodiment by the design of structural design and coating structure component so that the light area that penetrates is large moderate strength, and the light fixture of present embodiment have simple and reliable for structure, good heat dissipation effect, the advantage that long service life and luminous efficiency are high.
Embodiment 3
A kind of vapour automobile-used LED lower beam illumination lamp comprises elliposoidal reflection shield main body, and the outside of elliposoidal reflection shield main body is provided with the copper radiating fin of annular; Be provided with the LED lighting unit near being positioned at the focus of elliposoidal reflection shield bottom part body; The focus top that is positioned at elliposoidal reflection shield main body top is provided with condenser lens, and the focus on elliposoidal reflection shield main body top overlaps with the focus of condenser lens; The inner surface of described elliposoidal reflection shield main body from inside to outside is disposed with the first reflectance coating and the second reflectance coating, wherein the first reflectance coating is the thick AgCuIn alloy coat of 10nm, the second reflectance coating is the thick AlTiIn alloy coat of 30nm, in the wherein said AgCuIn alloy coat, the content of Cu is 2wt%, the content of In is 5wt%, and surplus is Ag; In the described AlTiIn alloy coat, the content of Ti is 6wt%, and the content of In is 2wt%, and surplus is Al.Described reflectance coating can prepare by magnetron sputtering or ALD deposition process.Described condenser lens inner surface has ARC, and the thickness of ARC is 30nm, and by the ZnO of 45wt%, the Ga of 12wt%
2The SnO of O3 and surplus
2Form.
The light fixture of present embodiment by the design of structural design and coating structure component so that the light area that penetrates is large moderate strength, and the light fixture of present embodiment have simple and reliable for structure, good heat dissipation effect, the advantage that long service life and luminous efficiency are high.
Although specific embodiment part elaborates technical scheme of the present invention by the specific embodiment, but those of ordinary skill in the art is to be understood that and can breaking away from the scope disclosed by the invention, can adopt to be equal to and replace or the enforcement of equivalent transformation form.Therefore, protection scope of the present invention is not limited to the specific embodiment of specific embodiment part, and the embodiment as long as no breaking away from invention essence all is interpreted as having dropped within the protection domain of requirement of the present invention.
Claims (3)
1. a vapour automobile-used LED lower beam illumination lamp comprises elliposoidal reflection shield main body, and the outside of elliposoidal reflection shield main body is provided with the copper radiating fin of annular; Be provided with the LED lighting unit near being positioned at the focus of elliposoidal reflection shield bottom part body; The focus top that is positioned at elliposoidal reflection shield main body top is provided with condenser lens, and the focus at elliposoidal reflection shield main body top overlaps with the focus of condenser lens; The inner surface that it is characterized in that elliposoidal reflection shield main body is provided with reflectance coating.
2. vapour automobile-used LED lower beam illumination lamp claimed in claim 1, it is characterized in that: the inner surface of described elliposoidal reflection shield main body from inside to outside is disposed with the first reflectance coating and the second reflectance coating, wherein the first reflectance coating is the thick AgCuIn alloy coat of 5-15nm, the second reflectance coating is the thick AlTiIn alloy coat of 20-50nm, in the wherein said AgCuIn alloy coat, the content of Cu is 2-3wt%, and the content of In is 3-5wt%, and surplus is Ag; In the described AlTiIn alloy coat, the content of Ti is 5-8wt%, and the content of In is 1-2wt%, and surplus is Al.
3. vapour automobile-used LED lower beam illumination lamp claimed in claim 2, it is characterized in that: described condenser lens inner surface has ARC, and the thickness of ARC is 20-50nm, and by the ZnO of 30-55wt%, the Ga of 10-15wt%
2The SnO of O3 and surplus
2Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210527582XA CN103032795A (en) | 2012-12-10 | 2012-12-10 | Light emitting diode (LED) lower-beam illumination lamp for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210527582XA CN103032795A (en) | 2012-12-10 | 2012-12-10 | Light emitting diode (LED) lower-beam illumination lamp for car |
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| Publication Number | Publication Date |
|---|---|
| CN103032795A true CN103032795A (en) | 2013-04-10 |
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ID=48019987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210527582XA Pending CN103032795A (en) | 2012-12-10 | 2012-12-10 | Light emitting diode (LED) lower-beam illumination lamp for car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075213A (en) * | 2014-06-24 | 2014-10-01 | 华南理工大学 | Optical structure of automotive light-emitting diode (LED) high-beam light |
-
2012
- 2012-12-10 CN CN201210527582XA patent/CN103032795A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075213A (en) * | 2014-06-24 | 2014-10-01 | 华南理工大学 | Optical structure of automotive light-emitting diode (LED) high-beam light |
| CN104075213B (en) * | 2014-06-24 | 2016-10-05 | 华南理工大学 | A kind of optical texture of automobile LED high beam |
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