CN109373281A - A kind of LED automobile lower beam headlamp - Google Patents
A kind of LED automobile lower beam headlamp Download PDFInfo
- Publication number
- CN109373281A CN109373281A CN201811348769.7A CN201811348769A CN109373281A CN 109373281 A CN109373281 A CN 109373281A CN 201811348769 A CN201811348769 A CN 201811348769A CN 109373281 A CN109373281 A CN 109373281A
- Authority
- CN
- China
- Prior art keywords
- condenser
- lens
- lower beam
- led lamp
- lamp source
- 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
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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
-
- 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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
-
- 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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
-
- 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
-
- 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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a kind of LED automobile lower beam headlamps, including the first optical module, barn door and projecting lens；First optical module includes the first LED lamp source, the first condenser and second condenser lens, and the two sides of first optical module are also respectively provided with second optical module, and second optical module includes the second LED lamp source, third condenser and the 4th condenser.LED lamp source automobile short-distance headlamp of the invention, has wider irradiating angle, and the resolution of distant location illumination is higher.
Description
Technical field
The present invention relates to lighting device for vehicle technical fields, more specifically, are shone before being related to a kind of LED automobile dipped beam
Lamp.
Background technique
LED lamp source is a kind of greater efficiency, and the outstanding light source that response is fast, shock resistance is strong is conducive to automobile lamp densification.
LED lamp source luminous efficiency is up to 100 lumens/every watt at this stage, wherein has the electrical power not less than 60% to be converted to loss thermal energy.
Overwhelming majority vehicles rule grade LED lamp source chip light-emitting surface Working Temperatures are up to 200 degrees Celsius at present, even higher.
For vehicle lower beam headlamp using LED lamp source as light emitting source, heat-resistant stability is poor.Therefore, have to the heat resistance of optical element
Harsher requirement.
Automobile short-distance headlamp in the prior art is provided only with a LED lamp source, with unification group condenser, barn door and
Projecting lens is come what is realized, and the lower beam headlamp of this structure, usual irradiating angle is relatively narrow, and the resolution of distant location illumination is not
It is high.
Summary of the invention
In order to solve the technical problems existing in the prior art, the present invention provides shine before a kind of LED lamp source automobile short-distance
Lamp, the resolution of distant location illumination not high technical problem relatively narrow with the irradiating angle for solving automobile short-distance headlamp.
In order to achieve the above purpose, the technical scheme is that
A kind of LED automobile lower beam headlamp, including the first optical module, barn door and projecting lens；First optical module
Including the first LED lamp source, the first condenser and second condenser lens, the two sides of first optical module are also respectively provided with one second
Optical module, second optical module include the second LED lamp source, third condenser and the 4th condenser.
Further, the optical axis coincidence of first condenser and second condenser lens, first LED lamp source are located at first
On the optical axis of condenser and second condenser lens；The optical axis coincidence of the third condenser and the 4th condenser, second LED light
Source is located on the optical axis of third condenser and the 4th condenser.
Further, the optical axis of first condenser, second condenser lens, third condenser and the 4th condenser, which is located at, throws
The top of shadow lens axis.
Further, be additionally provided with reflex reflector lens, the reflex reflector lens be located at the first optical module and the second optical module with
Between barn door；The reflex reflector lens are plate structure, and upper surface is lower than the optical axis of projecting lens.
Further, the barn door is the arcuate structure being recessed to reflex reflector lens direction, and the rear portion on barn door top is set
There is a downward step.
Further, the barn door is set in the focus of projecting lens；The top of the barn door is saturating close to projection
The optical axis of mirror.
Further, first condenser and third condenser are made of high temperature resistant optical glass.
Further, the second condenser lens and the 4th condenser are made of optical glass.
Further, first condenser and third condenser can be an integral molding structure or respective absolute construction,
Second condenser lens and the 4th condenser can be an integral molding structure or respective absolute construction.
Beneficial effects of the present invention:
LED lamp source automobile short-distance headlamp of the invention, has a wider irradiating angle, the resolution of distant location illumination compared with
It is high.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the spot pattern of the first LED lamp source.
Fig. 5 is the spot pattern of the second LED lamp source positioned at the first LED lamp source front end.
Fig. 6 is the spot pattern of the second LED lamp source positioned at the first LED lamp source rear end.
Fig. 7 is the spot pattern of the first LED lamp source and the combination of two the second LED lamp sources.
Specific embodiment
In order to make present invention solves the technical problem that, use technical solution, the technical effect of acquirement it can be readily appreciated that below
In conjunction with specific attached drawing, a specific embodiment of the invention is described further.
It should be noted that illustrating only part related to the present invention for ease of description, in attached drawing and not all knot
Structure.
As shown in Figure 1-3, a kind of LED lamp source lower beam headlamp, the first LED lamp source 1, first including being located at intermediate position
The second condenser lens 3 on 2 right side of the first condenser 2 and the first condenser on 1 right side of LED lamp source；First LED lamp source 1, the first optically focused
Mirror 2 and second condenser lens 3 collectively constitute the first optical module on an optical axis；First condenser 2 and 3 groups of second condenser lens
At an optically focused microscope group, converging action is played to the light beam that the first LED lamp source is launched.
The two sides of first optical module are respectively provided with second optical module.One of them second optical module is located at first
The front end (or upper end) of optical module, another second optical module are located at rear end (or lower end) (reference of the first optical module
Fig. 1).
Second optical module includes the third condenser 5 and third optically focused of the second LED lamp source 4,4 right side of the second LED lamp source
4th condenser 6 on 5 right side of mirror；Second LED lamp source 4, third condenser 5 and the 4th condenser 6 are on an optical axis.Third is poly-
Light microscopic 5 and the 4th condenser 6 form an optically focused microscope group, play converging action to the light beam that the second LED lamp source 4 is launched.
A kind of LED lamp source lower beam headlamp of the invention further includes right positioned at the first optical module and the second optical module
The reflex reflector lens 7 of side, the barn door 8 on 7 right side of reflex reflector lens and the projecting lens 9 on the right side of barn door 8.
First condenser 2 can be individual independent or integrated formed structure, the first condenser with third condenser 5
2 are made with third condenser 5 of high temperature resistant optical glass, and work heatproof is greater than 300 degrees Celsius.Overcome LED light source chip close
The application demand of field high temperature, guarantees stable optical performance.
Second condenser lens 3 and the 4th condenser 6 can be individual independent or integrated formed structure.Second condenser lens
3 and the 4th condenser 6 using optical glass make, work heatproof be greater than 120 degrees Celsius.
First condenser 2, second condenser lens 3, third condenser 5 and the 4th condenser 6 optical axis in the same horizontal plane A
On, and positioned at the top of 9 optical axis B of projecting lens (referring to Fig. 2).The focal length of first condenser 2 is greater than the coke of third condenser 5
Away from；The focal length of second condenser lens 3 is greater than the focal length of the 4th condenser 6.
Reflex reflector lens 7 are plate structure, and upper surface is lower than the optical axis of projecting lens 9.
Barn door 8 is set in the focus of projecting lens 9；Optical axis of the top 81 of barn door 8 close to projecting lens 9.It hides
Tabula rasa 8 is the arcuate structure being recessed to 7 direction of reflex reflector lens, and the rear portion on 8 top 81 of barn door is equipped with a downward step 82
(referring to Fig. 3).
Reflex reflector lens 7 are placed in second condenser lens 3, two between the 4th condenser 6 and barn door 8, to it is above-mentioned totally 3 it is poly-
The part lower end light beam that light microscopic group projects plays reflex, effectively improves optics utilization rate.
Barn door 8 is placed in 9 focal position of projecting lens, projects to above-mentioned totally 3 optically focused microscope groups and anti-through reflecting optics
Two parts light beam after penetrating plays shield and shaping operation, forms the light distribution patterns that there is "cut-off"line in upper end.
9 pairs of the projecting lens light beams Jing Guo 8 shaping of barn door play convergence and projection.
As shown in figure 4, being after the light of the first LED lamp source sending is projected by projecting lens 9, forming upper end has light and shade to cut
The only light distribution patterns of line.
As shown in figure 5, being the second LED lamp source 4 of upper end in second LED lamp source 4(Fig. 1 of the first LED lamp source front end) hair
After light out is projected by projecting lens, the light distribution patterns that there is "cut-off"line in upper end are formed.
As shown in fig. 6, being the second LED lamp source 4 of lower end in second LED lamp source 4(Fig. 1 of the first LED lamp source rear end) hair
After light out is projected by projecting lens, the light distribution patterns that there is "cut-off"line in upper end are formed.
As shown in fig. 7, being that above-mentioned 3 spot patterns are combined, the light distribution figure that there is "cut-off"line in upper end is formed
Case.
LED lamp source automobile short-distance headlamp of the invention has wider irradiating angle, the resolution of distant location illumination
It is higher.
Above embodiments and attached drawing are only used to illustrate the technical scheme of the present invention, and are not constituted a limitation of the present invention, and are answered
When explanation, those of ordinary skill in the art can modify to technical solution documented by previous embodiment or right
Part of or all technical features are equivalently replaced, and these are modified or replaceed should be included in claims of the present invention
In the range of protection.
Claims (9)
1. a kind of LED automobile lower beam headlamp, including the first optical module, barn door and projecting lens；The first optics group
Part includes the first LED lamp source, the first condenser and second condenser lens, it is characterised in that: the two sides of first optical module are also
It is respectively provided with second optical module, second optical module includes the second LED lamp source, third condenser and the 4th optically focused
Mirror.
2. LED automobile lower beam headlamp according to claim 1, it is characterised in that: first condenser and second gathers
The optical axis coincidence of light microscopic, first LED lamp source are located on the optical axis of the first condenser and second condenser lens；The third optically focused
The optical axis coincidence of mirror and the 4th condenser, second LED lamp source are located on the optical axis of third condenser and the 4th condenser.
3. LED automobile lower beam headlamp according to claim 2, it is characterised in that: first condenser, the second optically focused
The optical axis of mirror, third condenser and the 4th condenser is located at the top of projecting lens optical axis.
4. LED automobile lower beam headlamp according to claim 1, it is characterised in that: reflex reflector lens are additionally provided with, it is described reflective
Eyeglass is between the first optical module and the second optical module and barn door；The reflex reflector lens are plate structure, thereon table
Face is lower than the optical axis of projecting lens.
5. LED automobile lower beam headlamp according to claim 1, it is characterised in that: the barn door is to reflex reflector lens
The rear portion of the arcuate structure of direction recess, barn door top is equipped with a downward step.
6. LED automobile lower beam headlamp according to claim 5, it is characterised in that: it is saturating that the barn door is set to projection
In the focus of mirror；Optical axis of the top of the barn door close to projecting lens.
7. LED automobile lower beam headlamp according to claim 1, it is characterised in that: first condenser and third are poly-
Light microscopic is made of high temperature resistant optical glass.
8. LED automobile lower beam headlamp according to claim 1, it is characterised in that: the second condenser lens and the 4th gather
Light microscopic is made of optical glass.
9. LED automobile lower beam headlamp according to claim 1, it is characterised in that: first condenser and third are poly-
Light microscopic can be an integral molding structure or respective absolute construction, and the second condenser lens can be integrally formed with the 4th condenser
Structure or respective absolute construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348769.7A CN109373281A (en) | 2018-11-13 | 2018-11-13 | A kind of LED automobile lower beam headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348769.7A CN109373281A (en) | 2018-11-13 | 2018-11-13 | A kind of LED automobile lower beam headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109373281A true CN109373281A (en) | 2019-02-22 |
Family
ID=65384357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811348769.7A Pending CN109373281A (en) | 2018-11-13 | 2018-11-13 | A kind of LED automobile lower beam headlamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109373281A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040196663A1 (en) * | 2003-04-03 | 2004-10-07 | Koito Manufacturing Co., Ltd. | Vehicular headlamp and semiconductor light emitting element |
| US20050231971A1 (en) * | 2004-04-02 | 2005-10-20 | Koito Manufacturing Co., Ltd. | Vehicular headlamp and car headlamp |
| JP2009152056A (en) * | 2007-12-20 | 2009-07-09 | Ichikoh Ind Ltd | Vehicle lighting |
| US20120134167A1 (en) * | 2010-11-26 | 2012-05-31 | Sirius Light Technology Co., Ltd. | Vehicle lamp |
| US20130308328A1 (en) * | 2012-05-17 | 2013-11-21 | Osram Sylvania Inc. | Headlamp Featuring Both Low-Beam and High-Beam Outputs and Devoid of Moving Parts |
| CN103486521A (en) * | 2012-06-13 | 2014-01-01 | 汽车照明罗伊特林根有限公司 | Light module |
| CN105556200A (en) * | 2013-09-17 | 2016-05-04 | 三菱电机株式会社 | Vehicle-mounted headlight |
| CN106439672A (en) * | 2016-08-17 | 2017-02-22 | 上海小糸车灯有限公司 | LED light source car light module |
| CN106989342A (en) * | 2017-05-02 | 2017-07-28 | 深圳智诺车灯科技有限公司 | Far and near one LED headlamps |
| CN107023795A (en) * | 2017-05-02 | 2017-08-08 | 东莞市长资实业有限公司 | A kind of automotive LED headlamp module with distance-light function |
| CN107131464A (en) * | 2017-05-25 | 2017-09-05 | 上海小糸车灯有限公司 | A kind of intelligent automobile headlight module with complex function |
| KR20180111027A (en) * | 2017-03-31 | 2018-10-11 | 에스엘 주식회사 | Lamp for vehicle |
-
2018
- 2018-11-13 CN CN201811348769.7A patent/CN109373281A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040196663A1 (en) * | 2003-04-03 | 2004-10-07 | Koito Manufacturing Co., Ltd. | Vehicular headlamp and semiconductor light emitting element |
| US20050231971A1 (en) * | 2004-04-02 | 2005-10-20 | Koito Manufacturing Co., Ltd. | Vehicular headlamp and car headlamp |
| JP2009152056A (en) * | 2007-12-20 | 2009-07-09 | Ichikoh Ind Ltd | Vehicle lighting |
| US20120134167A1 (en) * | 2010-11-26 | 2012-05-31 | Sirius Light Technology Co., Ltd. | Vehicle lamp |
| US20130308328A1 (en) * | 2012-05-17 | 2013-11-21 | Osram Sylvania Inc. | Headlamp Featuring Both Low-Beam and High-Beam Outputs and Devoid of Moving Parts |
| CN103486521A (en) * | 2012-06-13 | 2014-01-01 | 汽车照明罗伊特林根有限公司 | Light module |
| CN105556200A (en) * | 2013-09-17 | 2016-05-04 | 三菱电机株式会社 | Vehicle-mounted headlight |
| CN106439672A (en) * | 2016-08-17 | 2017-02-22 | 上海小糸车灯有限公司 | LED light source car light module |
| KR20180111027A (en) * | 2017-03-31 | 2018-10-11 | 에스엘 주식회사 | Lamp for vehicle |
| CN106989342A (en) * | 2017-05-02 | 2017-07-28 | 深圳智诺车灯科技有限公司 | Far and near one LED headlamps |
| CN107023795A (en) * | 2017-05-02 | 2017-08-08 | 东莞市长资实业有限公司 | A kind of automotive LED headlamp module with distance-light function |
| CN107131464A (en) * | 2017-05-25 | 2017-09-05 | 上海小糸车灯有限公司 | A kind of intelligent automobile headlight module with complex function |
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