CN102788299B - Lamp for vehicle - Google Patents
Lamp for vehicle Download PDFInfo
- Publication number
- CN102788299B CN102788299B CN201210046621.4A CN201210046621A CN102788299B CN 102788299 B CN102788299 B CN 102788299B CN 201210046621 A CN201210046621 A CN 201210046621A CN 102788299 B CN102788299 B CN 102788299B
- Authority
- CN
- China
- Prior art keywords
- light source
- light
- speculum
- electrode
- vehicle
- 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.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/36—Combinations of two or more separate reflectors
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
Abstract
The invention provides a lamp for a vehicle, comprising a light source generating light on a surface, and a reflection mirror which is disposed at one side of the light source, and reflects light generated by the light source through multiple connection of a plurality of parabolic reflection faces.
Description
Technical field
The present embodiment relates to the lamp for vehicle.
Background technology
In general, vehicle comprises lighting fixture, and this lighting fixture has illumination functions for the things being easy to observe travel direction during night running, and has the purposes of the transport condition of warning other vehicles and itself vehicle of other road user.Having another name called the headlamp (head lamp) being called headlight is have to irradiate the illuminating lamp that vehicle travels the function of road ahead, and its brightness need reach and can confirm that front 100m is apart from the barrier on road at night.Whether the specification of headlamp is different by the benchmark set by country, especially according to for keeping to the right (left handle drive) or keep left (right hand drive), different to the setting of the direction of illumination of the light beam of headlamp.
Headlight for automobile, the illumination functions generally for the purpose of object of observation thing, and instruction for the purpose of the transport condition of informing other vehicles or itself vehicle of other road user, signal, warning function and decoration functions etc. used.
Headlamp uses bulb (Bulb) as light source, but the service life of bulb is short and resistance to impact is weak, therefore trend is in recent years used as light source the light emitting diode of high brightness (LED:Light Emitting Diode) or Organic Light Emitting Diode (OLED:Organic Light Emitting Diode).
Organic Light Emitting Diode can by manufacturing organic semiconductor material thin film on substrate, and the method has the feature that can manufacture the area source of desired apperance and size on single substrate.Therefore, when using as lighting device, different from inorganic LED, the illumination of Organic Light Emitting Diode does not need integrated technique.
For to the connection between the Organic Light Emitting Diode illumination electrode of supply power and external power supply, should be simple structure and cheap, also want easily to be changed safely by consumer simultaneously.
Summary of the invention
According to embodiments of the invention, provide a kind of lamp for vehicle improving light distribution patterns by revising the path coming from the light of Organic Light Emitting Diode.
According to embodiments of the invention, provide a kind of lamp for vehicle reducing the quantity of light-emitting component by improving light distribution patterns.
According to the lamp for vehicle of embodiment, comprising: light source, produce light on the whole; And speculum, be located at the side of light source, by multiple reflectings surface of parabolic shape multiple being connected, reflection results from the light of light source.
According to the lamp for vehicle of embodiment, the light produced on the whole can be assembled.
According to the lamp for vehicle of embodiment, light efficiency rate can be improved by improving luminous intensity distribution distribution.
According to the lamp for vehicle of embodiment, the cost of product can be reduced by the quantity improving the parts such as light source.
Accompanying drawing explanation
Fig. 1 is the stereogram of the structure of the vehicle lamp illustrated according to embodiment;
Fig. 2 is the stereogram of the structure of the vehicle lamp illustrated according to embodiment;
Fig. 3 is the stereogram of the structure of the vehicle lamp illustrated according to embodiment.
(explanation of Reference numeral)
110: light source 120: speculum
Detailed description of the invention
Be described with reference to the embodiment of accompanying drawing to lighting fixture of the present invention.In the process, illustrate in order to clear and definite and convenient, may exaggerate and show the thickness of accompanying drawing center line or the size etc. of inscape.Further, term described later is the technical terms that the function considered in the present invention defines, and it may change to some extent according to the intention of user, application person or convention.Therefore, based on the overall content of this description, these terms should be given a definition.
Fig. 1 is the stereogram of the structure that vehicle lamp 100 is according to an embodiment of the invention shown.
With reference to Fig. 1, the vehicle lamp 100 according to embodiment can comprise: the light source 110 being produced light by face; Be located at the side of light source 110, the speculum 120 of the light that reflection source 110 produces by multiple reflectings surface of parabola form multiple being connected.
Light source 110 can be the area source producing light from face.Light source 110 can be dispersed light with face shape as area source.Light source 110 can have predetermined angle of visibility.Light source 110 can be Organic Light Emitting Diode (OLED:Organic Light Emitting Diode).
Light source 110 can between the reflecting surface of speculum 120 and focus.Light source 110, between the reflecting surface and focus of speculum, makes light have linearity and produce reflection thus.
Organic Light Emitting Diode 110 can comprise: anode (not shown); Be positioned at the organic film (not shown) on anode (not shown); And the negative electrode (not shown) be positioned on organic film (not shown).For Organic Light Emitting Diode 110, if apply voltage between anode (not shown) and negative electrode (not shown), then hole (hole) is injected in organic film (not shown) from anode (not shown), and electronics (electron) is injected in organic film (not shown) from negative electrode (not shown).For Organic Light Emitting Diode 110, the hole be injected in organic film (not shown) is combined with electronics again, thus can produces exciton (exiton) in organic film (not shown).Organic Light Emitting Diode 110 transits to ground state by exciton from excitation state and sends light.
Organic Light Emitting Diode 110 is according to the type of drive of the pixel of arranging in a matrix fashion being divided into passive-matrix (Passive matrix) mode and active-matrix (Active matrix) mode.
Organic Light Emitting Diode 110 in passive-matrix mode, can make anode mutually vertical with negative electrode and is formed, and by selecting line to drive.Organic Light Emitting Diode 110 can in active-matrix mode, thin film transistor (TFT) (not shown) is connected on each pixel electrode (not shown), is driven by the voltage kept by the capacity of capacitor of the grid (not shown) being connected to thin film transistor (TFT) (not shown).
Organic Light Emitting Diode 110 can comprise: substrate (not shown); Be positioned at the first electrode (not shown) on substrate (not shown); Be positioned at the organic film (not shown) on the first electrode (not shown); And the second electrode (not shown) be positioned on organic film (not shown).
Substrate (not shown) can be formed by glass, plastics or conductive material.Substrate (not shown) can also comprise by Si oxide (SiO
2), the cushion (not shown) that formed such as silicon carbide (SiNx), protect in the impurities such as the basic ion flowed out from substrate (not shown) Organic Light Emitting Diode 110 formed in subsequent technique.
Substrate (not shown) stackedly can be arranged the first electrode (not shown), organic film (not shown) and the second electrode (not shown).Substrate (not shown) can be arranged the first electrode (not shown) and the second electrode (not shown), organic film (not shown) can be set between the first electrode (not shown) and the second electrode (not shown).
First electrode (not shown) can be anode.First electrode (not shown) can be transparent electrode or reflecting electrode.First electrode (not shown) can be one in the light transmission material such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide) or ZnO (Zinc Oxide).First electrode (not shown), in the bottom of the layer be made up of in ITO, IZO or ZnO, can also comprise by a reflecting layer formed in aluminium (Al), silver (Ag) or nickel (Ni).First electrode (not shown) can comprise reflecting layer between two layers be made up of in ITO, IZO or ZnO, but is not defined in this.
First electrode (not shown) can be formed by sputtering method (Sputtering), vapour deposition method (Evaporation), vapour deposition (Vapor Phase Deposition) or ebd method (Electron Beam Deposition) etc., but is not defined in this.
Organic film (not shown) can be positioned on the first electrode (not shown).Organic film (not shown) can comprise luminescent layer (not shown), can also comprise hole injection layer (not shown), hole transmission layer (not shown), electron transfer layer (not shown) or electron injecting layer (not shown) on the top of luminescent layer (not shown) or bottom.
Hole injection layer (not shown) can from the first electrode (not shown) to luminescent layer (not shown) injected hole.Hole injection layer (not shown) can by CuPc (cupper phthalocyanine), PEDOT (poly (3,4)-ethylenedioxythiophene), PANI (polyaniline) and NPD (N, N-dinaphthyl-N, N '-diphenyl benzidine) in more than one material form, but not limited thereto.Hole injection layer (not shown) can utilize vapour deposition method or method of spin coating to be formed.
Hole transmission layer (not shown) plays and the transmission in hole is acted on smoothly, can by NPD (N, N-dinaphthyl-N, N '-diphenyl benzidine), TPD (N, N '-bis-(3-methylphenyl)-N, N '-bis-(phenyl)-benzidine), s-TAD and MTDATA (4,4 ', 4 "-Tris (N-3-methylphenyl-N-phenyl-amino)-triphenylamine) in more than one material formed, but be not defined in this.Hole transmission layer (not shown) can utilize vapour deposition method or method of spin coating to be formed.
Luminescent layer (not shown) can be formed by sending redness, green and blue material, and phosphorescence or fluorescent material can be utilized to be formed.
When luminescent layer (not shown) is red, can comprise containing CBP (carbazole biphenyl) or mCP (1, the host material of 3bis (carbazol-9-yl), and can by comprising PIQIr (acac) (bis (1-phenylisoquinoline) acetylacetonate iridium), PQIr (acac) (bis (1-phenylquinoline) acetylacetonate iridium), the phosphorus of the more than one alloy in PQIr (tris (1-phenylquinoline) iridium) and PtOEP (octaethylporphyrin platinum), or the fluorescent material comprising PBD:Eu (DBM) 3 (Phen) or Perylene is formed, but be not defined in this.
When luminescent layer (not shown) is green, can comprise containing CBP (carbazole biphenyl) or the mCP (host material of 1,3bis (carbazol-9-yl).Luminescent layer (not shown) can by the phosphorus comprising Ir (ppy) 3 (fac tris (2-phenylpyridine) iridium) alloy, or Alq3 (tris (8-hydroxyquinolino) aluminum) fluorescent material is formed, but is not defined in this.
When luminescent layer (not shown) is blue, can comprise containing CBP (carbazole biphenyl) or the mCP (host material of 1,3bis (carbazol-9-yl).Luminescent layer (not shown) can by containing (4,6-F2ppy) the phosphorus of 2Irpic alloy, or the fluorescent material containing in spiro-DPVBi, spiro-6P, diphenylethyllene benzene (DSB), distyryl derivatives (DSA), PFO system macromolecule and PPV system macromolecule is formed, but is not defined in this.
Electron transfer layer (not shown) plays and the transmission of electronics is acted on smoothly, more than one in Alq3 (tris (8-hydroxyquinolino) aluminum), PBD, TAZ, spiro-PBD, BAlq and SAlq can be comprised, but be not defined in this.Electron transfer layer (not shown) can utilize vapour deposition method or method of spin coating to be formed.
Electron transfer layer (not shown) can prevent from moving to the second electrode (not shown) from the first electrode (not shown) injected holes through luminescent layer (not shown).Electron transfer layer (not shown) can make hole effectively be combined at luminescent layer (not shown) with electronics.
Electron injecting layer (not shown) can make the injection of electronics smooth and easy, can be formed by Alq3 (tris (8-hydroxyquinolino) aluminum), PBD, TAZ, spiro-PBD, BAlq or SAlq, but not limited thereto.
Electron injecting layer (not shown) can also comprise inorganic matter.Electron injecting layer (not shown) can also comprise the inorganic matter containing metallic compound.Electron injecting layer (not shown) can comprise the metallic compound of alkali metal or alkaline-earth metal etc.Electron injecting layer (not shown) can comprise lithium fluoride (LiF), sodium fluoride (NaF), potassium fluoride (KF), rubidium fluoride RbF (RbF), cesium fluoride (CsF) containing the metallic compound as alkali metal or alkaline-earth metal, fluoridize francium (FrF), beryllium fluoride (BeF
2), magnesium fluoride (MgF
2), calcirm-fluoride (CaF
2), strontium fluoride (SrF
2), fluoridize palladium (BaF
2) and fluoridize radium (RaF
2) in more than one, but not limited thereto.
Electron injecting layer (not shown) can be formed by vapour deposition method or method of spin coating, or organic matter is mixed with inorganic matter mutually with codeposition (Co-deposition) method and formed.
Second electrode (not shown) can be negative electrode, can be made up of magnesium (Mg), calcium (Ca), aluminium (Al), silver (Ag) or their alloy that work function (work function) is low.Second electrode (not shown) can be formed as thin thickness, to such an extent as to Organic Light Emitting Diode 100 for above or lighting at two sides structure time can make light transmission.Second electrode (not shown) can be formed as thick structure, to such an extent as to Organic Light Emitting Diode 100 can make light reflect for during back side illuminated structure.
The shape of light source 110 can be rectangle.The length W of the minor face of light source 110 can be 10 to 20mm.The length W of the minor face of light source 110 is shorter, and light harvesting can become higher.Light source 110, if the length W of minor face is less than 10mm, then light output may become too small, if the length W of minor face is greater than 20mm, then light efficiency rate may reduce.
Speculum 120 can be arranged on the side or above of light source 110.Speculum 120 can be formed around the side of light source 110.Its part of speculum 120 can be positioned on light source 110.A part for speculum 120 can be covered the part in the face of the luminescence of light source 110 and be formed.Speculum 120 can be formed in the side of light source 110 and the light that reflection source 110 sends.
Speculum 120 can be formed by the reflecting surface of approximate parabola form multiple being connected.In the present embodiment, parabola refers to and is similar to paraboloidal situation, is called parabola for convenience of explanation below.
Speculum 120, the reflecting surface connected from parabola form multiplephase can make the light inputted from light source 110 become multifocal and reflect away.Speculum 120, its each reflecting surface can for the shape of parabola form being cut with predetermined apperance.Speculum 120 can be connected by multiple reflectings surface with predetermined curvature and be formed.Speculum 120, the curvature of the reflecting surface of its parabola form can be identical with concave mirror.Speculum 120, the boundary member that multiple reflectings surface of its parabola form are connected can be positioned on light source 110.
Speculum 120, the reflecting surface connected by parabola form multiplephase can be assembled the light sent from area source 110 and reflect away.Speculum 120 can make inputted light have multiple focus and reflect away.Speculum 120 has multiple focus by making light, and can maximize the efficiency of vehicle lamp 100.
Speculum 120, the focal length of the reflecting surface of its parabola form can be 10 to 20mm.Speculum 120, when the focal length of the reflecting surface of its parabola form is below 10mm, distance spotlight effect far away may be lower, and during more than 20mm, angle of visibility may become narrow.Speculum 120, its focal length can be greater than the length W of the minor face of light source 110.Speculum 120 can arrange light source 110 between reflecting surface and focus.
Fig. 2 is the stereogram that vehicle lamp 100 is according to another embodiment of the present invention shown.
With reference to Fig. 2, comprising: the light source 110 producing light from face; And be located at the side of light source 110, the speculum 120 light reflected by multiple reflectings surface of parabola form multiple being connected; Wherein, speculum 120 extends to above light source 110 by improving the curvature of reflecting surface, thus can be positioned at the part above light source 110.
Light source 110 can be formed as rectangle.Light source 110, the length of its minor face can be 10mm, and the length on long limit can be 200mm.The luminous flux of light source 110 can be 8lm (lumen).Light source 110 with become 30 ° of angles between ground surface.
Speculum 120 is located at the side of light source 110, and a part for its reflecting surface can be positioned at above light source 110.Speculum 120 can be the shape that multiple reflectings surface of paraboloidal state are connected, and the coupling part between reflecting surface can be given prominence to forward and be positioned at above light source 110.The focal length of speculum 120 can be 10mm.In speculum 120, the transverse width of each reflecting surface can be 50mm.Speculum 120 can be connected by 5 reflectings surface and be formed.The height T of speculum 120 can be 45mm.Above-mentioned item is exemplary, is not defined in this.Speculum 120 can improve light efficiency rate by improving light distribution patterns.
Speculum 120 can improve light gathering efficiency by the curvature improving reflecting surface.Speculum 120 can reduce the quantity of light source 110 by improving concentration ratio, even if the size reducing light source 110 also can have high light efficiency rate.
Fig. 3 is the stereogram that vehicle lamp 100 is according to another embodiment of the present invention shown.
With reference to Fig. 3, comprising: the light source 110 producing light from face; And be located at the side of light source 110, the speculum 120 light reflected by multiple reflectings surface of parabola form multiple being connected; Wherein, the reflecting surface that speculum 120 is formed as the parabola form of its end section is extended and around the sidepiece of light source 110.
Speculum 120 is located at the side of light source 110, and the reflecting surface of the parabola form of its both-side ends part extends the offside reflection face 122 that formed and formed around the sidepiece of light source 110.Speculum 120, can reflect by offside reflection face 122 light spilt to side and improve light distribution patterns.
The focal length of speculum 120 can be 12mm.In speculum 120, the width of each reflecting surface can be 15mm.Speculum 120 can be connected by 14 reflectings surface and be formed.The height T of speculum 120 can be 50mm.Above-mentioned item is exemplary, is not defined in this.Speculum 120 can improve light efficiency rate by improving light distribution patterns.
Above; with reference to accompanying drawing, preferred embodiment is illustrated; but the present invention is not defined in aforementioned specific embodiment; when not departing from the claimed present inventive concept of claim; those of ordinary skill in the art can implement various change, and this change can not be interpreted as that it is independent of technological thought of the present invention or prospect.
Claims (4)
1., for a lamp for vehicle, comprising:
Light source, produces light from face; And
Speculum, is located at the side of described light source, is reflected the light that described light source produces by multiple reflectings surface of parabola form multiple being connected;
Wherein, described speculum is formed with the offside reflection face extended by the described reflecting surface of end section in described multiple reflecting surface, and the light that described offside reflection face is dispersed for the side reflected to described light source.
2. the light for vehicle according to claim 1, is characterized in that, described light source is Organic Light Emitting Diode.
3. the light for vehicle according to claim 1, is characterized in that, described light source is formed as rectangular shape, and the length of minor face is 10 to 20mm.
4. the light for vehicle according to claim 1, is characterized in that, described light source to be located in described speculum and described multiple reflecting surface between the focus of at least one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110047740A KR101736449B1 (en) | 2011-05-20 | 2011-05-20 | Lamp of vehicle |
| KR10-2011-0047740 | 2011-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788299A CN102788299A (en) | 2012-11-21 |
| CN102788299B true CN102788299B (en) | 2015-02-11 |
Family
ID=47153792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210046621.4A Expired - Fee Related CN102788299B (en) | 2011-05-20 | 2012-02-27 | Lamp for vehicle |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101736449B1 (en) |
| CN (1) | CN102788299B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023781A (en) * | 2017-06-02 | 2017-08-08 | 成都市锦华实用电器研究所有限公司 | The optical texture of reflectivity and its forming method of shallow/deep groove type reflective mirror can be improved |
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| CN1701446A (en) * | 2002-08-30 | 2005-11-23 | 吉尔科有限公司 | LED plane light source and low-profile headlight constructed therewith |
| CN1820980A (en) * | 2006-03-21 | 2006-08-23 | 张元泰 | Direction indicating lamp for automobile |
| CN100494771C (en) * | 2004-09-13 | 2009-06-03 | 斯坦雷电气株式会社 | Vehicle lamps |
| CN101646898A (en) * | 2007-04-03 | 2010-02-10 | 奥斯兰姆有限公司 | Semiconductor light module |
| CN101701678A (en) * | 2009-09-23 | 2010-05-05 | 安徽师范大学 | Design method for high-power LED lamp |
| CN101858564A (en) * | 2010-04-16 | 2010-10-13 | 海洋王照明科技股份有限公司 | High beam reflector, high beam and motor vehicle |
| CN101988665A (en) * | 2009-08-04 | 2011-03-23 | 国立中央大学 | High-contrast-light-type projection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4168357B2 (en) * | 1999-03-24 | 2008-10-22 | スタンレー電気株式会社 | Lamp |
| JP4606292B2 (en) * | 2005-09-26 | 2011-01-05 | スタンレー電気株式会社 | Vehicle lighting |
| KR101023456B1 (en) * | 2009-09-25 | 2011-03-24 | 금호전기주식회사 | Oled lighting apparatus |
| JP5629078B2 (en) | 2009-10-06 | 2014-11-19 | スタンレー電気株式会社 | Vehicle headlight and reflector unit |
-
2011
- 2011-05-20 KR KR1020110047740A patent/KR101736449B1/en active IP Right Grant
-
2012
- 2012-02-27 CN CN201210046621.4A patent/CN102788299B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1701446A (en) * | 2002-08-30 | 2005-11-23 | 吉尔科有限公司 | LED plane light source and low-profile headlight constructed therewith |
| CN100494771C (en) * | 2004-09-13 | 2009-06-03 | 斯坦雷电气株式会社 | Vehicle lamps |
| CN1820980A (en) * | 2006-03-21 | 2006-08-23 | 张元泰 | Direction indicating lamp for automobile |
| CN101646898A (en) * | 2007-04-03 | 2010-02-10 | 奥斯兰姆有限公司 | Semiconductor light module |
| CN101988665A (en) * | 2009-08-04 | 2011-03-23 | 国立中央大学 | High-contrast-light-type projection device |
| CN101701678A (en) * | 2009-09-23 | 2010-05-05 | 安徽师范大学 | Design method for high-power LED lamp |
| CN101858564A (en) * | 2010-04-16 | 2010-10-13 | 海洋王照明科技股份有限公司 | High beam reflector, high beam and motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102788299A (en) | 2012-11-21 |
| KR101736449B1 (en) | 2017-05-16 |
| KR20120129471A (en) | 2012-11-28 |
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