CN106989342A - Far and near one LED headlamps - Google Patents
Far and near one LED headlamps Download PDFInfo
- Publication number
- CN106989342A CN106989342A CN201710301050.7A CN201710301050A CN106989342A CN 106989342 A CN106989342 A CN 106989342A CN 201710301050 A CN201710301050 A CN 201710301050A CN 106989342 A CN106989342 A CN 106989342A
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- Prior art keywords
- led
- light
- lens
- light source
- lens group
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Classifications
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- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
- F21S41/692—Shields, i.e. screens not creating an image meant to be projected
-
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- 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
-
- 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
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 far and near one LED headlamps, including the LED/light source being arranged in order, lens group, with light unit, moveable cut-off light barrier and condenser, the lens group focal length falls on the optical axis of corresponding LED/light source, the both sides up and down for being located at the LED/light source optical axis respectively with light unit and moveable cut-off light barrier.The present invention is simple in construction, and cost is relatively low, but can meet high beam can meet the car light demand of dipped headlight again.
Description
Technical field
The present invention relates to car lighting technical field, more particularly to a kind of far and near one LED headlamps.
Background technology
LED/light source is in the application in car headlamp field, and still in the starting stage, main cause is in specific implementation process
In, it is not well solved also in terms of various engineering technical problem such as luminous intensity distribution design, radiating, stress, volume, wherein,
Luminous intensity distribution is designed and radiating, resistance to thermal design just face more problem.
For example, current automobile LED headlamp luminous intensity distribution design, mainly there is two kinds：
One is that in traditional large-sized curved surface Reflecting lamp cup, the halogen of the models such as original H4, H7 is directly replaced using the small wicks of LED
Plain bulb or Xe lamp bulb.The problem of in the presence of being difficult to solve：Because LED and Halogen lamp LED and xenon lamp light source luminescent characteristic have essence
Difference, luminous intensity distribution performance is unable to reach《GB 4599-2007 lamps for vehicle silk bulb headlamp》With《GB25991 vapour automobile-used LEDs
Headlamp》Laws and regulations requirement.
Two schemes being made up of LED source chip, compound ellipsoid reflector, frequency modulated light plate, three groups of units of lens；Exist
Problem has：1. because compound ellipsoid reflector is high comprising more unsymmetric structure unit, processing cost, manufacturing process difficulty,
During towards batch micro operations, because fabrication tolerance is small, quality guarantee aspect has more limitation.2. LED is luminous while,
Radiate substantial amounts of heat, in the lamp body of higher temperatures, the nigrescence that comes off occur in the easy aging of material of compound ellipsoid reflector, reflecting coating
Phenomenon, cause headlamp light efficiency decline, or even failure.
Therefore, how the automobile LED headlamp that a kind of optical efficiency is high, simple and reliable for structure, be easy to batch production is provided
It is industry technical problem urgently to be resolved hurrily.
The content of the invention
The present invention is in order to solve the above-mentioned problems in the prior art, it is proposed that a kind of distance one LED headlamps, wraps
Include the LED/light source being arranged in order, lens group, with light unit, moveable cut-off light barrier and condenser, the lens group focal length
Fall on the optical axis of corresponding LED/light source, it is described to be located at the LED respectively with light unit and moveable cut-off light barrier
The both sides up and down of light source optical axis.
In the first embodiment, the LED/light source includes the first LED and the second LED that left and right is arranged side by side, described
Lens group includes the first lens group and the second lens group for corresponding to first, second LED respectively, first, second lens group
Include the first lens and the second lens being from the close-by examples to those far off successively set on respective optical axis, it is described to be in the light with light unit and cut-off
The left and right width of plate covers the LED/light source, and the left and right width and upper-lower height of the condenser cover the LED/light source, institute
The focus for stating condenser falls on the left and right center line of the LED/light source.
In a second embodiment, the LED/light source includes the first LED and the second LED that left and right is set, the lens
Group includes the first lens group and the second lens group for corresponding to first, second LED respectively, and first, second lens group is wrapped
The first lens and the second lens being from the close-by examples to those far off successively set on respective optical axis are included, the left and right width with light unit only covers
The LED of lid second, the cut-off light barrier and condenser are equipped with two, and first, second LED is corresponded to respectively.
In the third embodiment, the LED/light source is using a LED, and the lens group includes from the close-by examples to those far off being arranged on
The first lens and the second lens on LED optical axis, it is described to be equipped with 1 with light unit, cut-off light barrier and condenser.
In above-mentioned all embodiments, the cut-off light barrier connection magnetic valve, by the control of magnetic valve from optical axis one
Side is directed away from the direction movement of optical axis.The focal length f1 of first lens meets 5mm≤f1≤18mm, the focal length of the second lens
F2 meets 10mm≤f2≤28mm, and the temperature resistant range of first, second lens is -100 DEG C to 300 DEG C.It is described to match somebody with somebody light unit
Formed by many R post array arrangements, the vertical interval scope of incidence surface to the exiting surface of the R posts is 1-10mm, the R posts
Incidence surface undulate, exiting surface is optical flat, or the R posts incidence surface and the equal undulate of exiting surface.Described section
Backstop tabula rasa is plate-like or cylinder shape.The focal length f of the condenser meets 20mm≤f≤50mm, the incidence surface of the condenser
And the rise Z of exiting surface is satisfied by, wherein c is the curvature of surface of incidence surface and exiting surface, and y is
The radius of incidence surface and exiting surface coincident circumference, K is the face shape circular cone coefficient of incidence surface or exiting surface.Described incidence surface
S2 radius R2 meets -300≤R2<0；Circular cone coefficient K2 meets -60≤K1≤0.The radius R1 of the exiting surface meets 20mm
≤ R1≤40mm, circular cone coefficient K1 meet -1.5≤K1≤0.5.
Technical problem of the present invention present in prior art, it is proposed that optics knot common in the art can be distinguished
Structure, optical efficiency height, the luminous intensity distribution for the automotive LED headlamp that tolerable temperature is high, simple in construction, engineering manufacture is easy to batch production
Design method and system schema.And the present invention ends the movement of light barrier by control, can both realize the function of dipped headlight
The function of high beam can be realized again, and cost is substantially reduced.
Brief description of the drawings
Fig. 1 is the X-Z directions view of first embodiment of the invention；
Fig. 2 is the Y-Z directions view of first embodiment of the invention；
Fig. 3 is second embodiment of the invention X-Z directions view；
Fig. 4 is the X-Z directions view of third embodiment of the invention；
Fig. 5 is X-Z the and Y-Z directions view of cut-off light barrier；
Fig. 6 is with R posts X-Z directions view in light unit；
Fig. 7 is condenser Y-Z directions view.
Embodiment
Distance one LED headlamps proposed by the present invention, including be arranged in order LED/light source, lens group, with light unit,
Moveable cut-off light barrier and condenser, in the present invention, the direction that we define from LED/light source to condenser is Z axis, thoroughly
Microscope group focal length falls on the optical axis of corresponding LED/light source, that is, falls in Z axis parallel direction, with light unit and removable
Dynamic cut-off light barrier is located at the both sides up and down of LED/light source optical axis respectively, and we will be perpendicular to the above-below direction of LED/light source optical axis
Be set as Y-axis, and perpendicular to LED/light source optical axis left and right directions we be set as X-axis.
The LED/light source that the present invention is selected provides enough luminous fluxes, designed by luminous intensity distribution, meets《GB25991 automobiles are used
LED headlamps》The laws and regulations requirement of distance light or the integral headlamp of dipped beam.Lens group collects the light of its corresponding LED lamp source outgoing
Flux, reduction LED/light source emergent light beam angle, the luminous intensity distribution beneficial to condenser are designed.With light unit pair《Before GB25991 vapour automobile-used LEDs
Illuminator》I areas defined in laws and regulations requirement carry out auxiliary luminous intensity distribution, play evenly with broader illumination functions of paving the way.And end gear
Tabula rasa is located near condenser focal plane, when far and near one LED headlamps are as lower beam headlamp, provide light and shade for dipped headlight and cuts
Only line.Condenser is collected from LED lamp source outgoing, and then the light beam after cut-off frequency modulated light plate shaping, projects away progress
Illumination.On the receiving screen that test phase can project 25 meters of distant places, luminous intensity distribution performance is tested, by checking, the present invention is met
《GB25991 vapour Vehicular LED headlamps》Index request in regulation.
Fig. 1 is the X of first embodiment of the invention, the also referred to as view in Z-direction, top view.Fig. 2 is the present invention first
View on the Y of embodiment, Z-direction, also referred to as side view.In this embodiment, LED/light source is divided into two groups, and lens
Group is also classified into corresponding with two groups of LED/light sources respectively two groups.Two groups of LED/light sources share a set of with light unit, cut-off light barrier
And condenser.Specifically, LED/light source includes the first LED 11 and the second LED 12 that left and right is arranged side by side, the first LED 11
It is located at the both sides of Z axis respectively in the X direction with the second LED 12, lens group includes corresponding to the of first, second LED respectively
One lens group and the second lens group, first, second lens group include the be from the close-by examples to those far off successively set on respective LED light axle
One lens 21 and the second lens 22, cover two groups of LED/light sources, i.e., in X with light unit 30 and the left and right width for ending light barrier 40
LED/light source is covered on direction of principal axis, wherein, described being located in the Y-axis direction with light unit only covers LED/light source positioned at Y
The part of axle positive direction.Described cut-off light barrier 40 is located in the Y-axis direction only covers LED/light source positioned at Y-axis negative direction
Part.The left and right width and upper-lower height of condenser 50 cover LED/light source, and the focus of condenser then falls in LED/light source
Left and right center line on, i.e., on the center line Z axis of X-axis.
Fig. 3 is the X of second embodiment of the invention, the view in Z-direction.In this embodiment, LED/light source, lens group, cut
Backstop tabula rasa and condenser are all respectively divided into two groups.Set specifically, LED/light source includes left and right（Respectively positioned at X-axis just,
Negative direction）The first LED 11 and the second LED 12, lens group include respectively correspond to first, second LED the first lens
Group and the second lens group, first, second lens group include the first lens being from the close-by examples to those far off successively set on respective LED light axle
21 and second lens 22, in the light path that the second LED 12 is provided only on light unit 30, i.e. the left and right width with light unit 30（X
On direction of principal axis）The second LED 12 is only covered, cut-off light barrier and condenser are equipped with two, respectively correspond to the first LED
First cut-off light barrier 41, the first condenser 51, the second cut-off light barrier 42, the second condenser lens 52 of the second LED of correspondence.
Fig. 4 is the X of third embodiment of the invention, Z-direction view, and in this embodiment, LED/light source is using a LED
10, lens group includes the first lens 21 and the second lens 22 being from the close-by examples to those far off arranged on LED optical axis, with light unit 30, cuts
Backstop tabula rasa 40 and condenser 50 are equipped with 1.
The focal length f1 of the first lens 21 in three above-mentioned embodiments meets 5mm≤f1≤18mm, the second lens 22
Focal length f2 meets 10mm≤f2≤28mm, and the temperature resistant range of first, second lens is -100-300 DEG C.
Fig. 5 is off X, Z-direction and the Y of light barrier, Z-direction view, it can be seen that in above three embodiment, cuts
Backstop tabula rasa can also be able to be in cylinder shape with plate-like.And in above three embodiment, cut-off light barrier may move,（Ginseng
Examine Fig. 2）By connecting magnetic valve 60, when needing from dipped headlight to switch to high beam in use, opens solenoid valve 60, control cut-off gear
Tabula rasa is directed away from the direction movement of optical axis from optical axis side, i.e., moved along Y-axis negative direction, it is possible to make as high beam
With.
As shown in fig. 6, with light unit formed by many array arrangements of R posts 70 in above three embodiment, R posts enter
Smooth surface to the vertical interval scope of exiting surface is 1-10mm, in one embodiment, the incidence surface undulate of R posts, and exiting surface is
Optical flat, in another embodiment, the incidence surface and exiting surface of R posts can equal undulates.
As shown in fig. 7, the focal length f of condenser meets 20mm≤f≤50mm in above three embodiment, condenser enters light
The rise Z of face and exiting surface is satisfied by, c is the curvature of surface of incidence surface and exiting surface, y be into
The optical axis of point and condenser in smooth surface and exiting surface, the distance in figure on Y-axis coordinate direction, in specific product, y is
The radius of incidence surface and exiting surface coincident circumference.K is the face shape circular cone coefficient of incidence surface or exiting surface.Exiting surface of the present invention
S1 radius R1 meets 20mm≤R1≤40mm, and circular cone coefficient K1 meets -1.5≤K1≤0.5, its curvature of surface c1=1/R1.This
The incidence surface S2 of invention is the direction curved surface opposite with exiting surface, therefore its subsequent corrosion R2 satisfactions -300mm≤R2<
0mm；The S2 of incidence surface circular cone coefficient K2 meets -60≤K1≤0.
Embodiments above is only to the optical texture for illustrating the present invention, and one of ordinary skill in the art is at this
Various deformation and change can be made under the design of invention, these deformation and change be included in protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of distance one LED headlamps, it is characterised in that including the LED/light source being arranged in order, lens group, with light unit,
Moveable cut-off light barrier and condenser, the lens group focal length falls on the optical axis of corresponding LED/light source, described to match somebody with somebody
Light unit and moveable cut-off light barrier are located at the both sides up and down of the LED/light source optical axis respectively.
2. distance one LED headlamps as claimed in claim 1, it is characterised in that the LED/light source includes left and right and set side by side
The first LED and the second LED put, the lens group include the first lens group and for corresponding to first, second LED respectively
Two lens groups, first, second lens group includes from the close-by examples to those far off being successively set on the first lens on respective optical axis and the
Two lens, the left and right width with light unit and cut-off light barrier covers the LED/light source, the left and right width of the condenser
And upper-lower height covers the LED/light source, the focus of the condenser falls on the left and right center line of the LED/light source.
3. distance one LED headlamps as claimed in claim 1, it is characterised in that the LED/light source includes what left and right was set
First LED and the second LED, the lens group are saturating including the first lens group and second for corresponding to first, second LED respectively
Microscope group, first, second lens group is saturating including the first lens being from the close-by examples to those far off successively set on respective optical axis and second
Mirror, the left and right width with light unit only covers the second LED, and the cut-off light barrier and condenser are equipped with two pieces, point
Dui Ying not first, second LED.
4. distance one LED headlamps as claimed in claim 1, it is characterised in that the LED/light source uses a LED,
The lens group includes the first lens and the second lens being from the close-by examples to those far off arranged on LED optical axis, described with light unit, cut-off
Light barrier and condenser are equipped with 1.
5. the far and near one LED headlamps as described in Claims 1-4 any one claim, it is characterised in that described section
Backstop tabula rasa connects magnetic valve, is moved by the control of magnetic valve from the direction that optical axis side is directed away from optical axis.
6. the far and near one LED headlamps as described in claim 2 to 4 any one claim, it is characterised in that described the
The focal length f1 of one lens meets 5mm≤f1≤18mm, and the focal length f2 of the second lens meets 10mm≤f2≤28mm, described first,
The temperature resistant range of second lens is -100-300 DEG C.
7. the far and near one LED headlamps as described in Claims 1-4 any one claim, it is characterised in that described to match somebody with somebody
Light unit is formed by many R post array arrangements, and the vertical interval scope of incidence surface to the exiting surface of the R posts is 1-10mm, institute
State the incidence surface undulate of R posts, exiting surface is optical flat, or the R posts incidence surface and the equal undulate of exiting surface.
8. the far and near one LED headlamps as described in Claims 1-4 any one claim, it is characterised in that described section
Backstop tabula rasa is plate-like or cylinder shape.
9. the far and near one LED headlamps as described in Claims 1-4 any one claim, it is characterised in that described poly-
The focal length f of light microscopic meets 20mm≤f≤50mm, and the incidence surface of the condenser and the rise Z of exiting surface are satisfied by, c is the curvature of surface of incidence surface and exiting surface, and y is that incidence surface and exiting surface coincident are justified
The radius in week, K is the face shape circular cone coefficient of incidence surface or exiting surface.
10. distance one LED headlamps as claimed in claim 9, it is characterised in that the radius R1 of the exiting surface S1 is met
20mm≤R1≤40mm, circular cone coefficient K1 meet -1.5≤K1≤0.5；The radius R2 of the incidence surface S2 meets -300≤R2<
0；Circular cone coefficient K2 meets -60≤K1≤0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301050.7A CN106989342B (en) | 2017-05-02 | 2017-05-02 | Far and near integrated LED headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301050.7A CN106989342B (en) | 2017-05-02 | 2017-05-02 | Far and near integrated LED headlamp |
Publications (2)
| Publication Number | Publication Date |
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| CN106989342A true CN106989342A (en) | 2017-07-28 |
| CN106989342B CN106989342B (en) | 2023-04-07 |
Family
ID=59418104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710301050.7A Active CN106989342B (en) | 2017-05-02 | 2017-05-02 | Far and near integrated LED headlamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN106989342B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373281A (en) * | 2018-11-13 | 2019-02-22 | 深圳智诺车灯科技有限公司 | A kind of LED automobile lower beam headlamp |
| CN111587343A (en) * | 2017-11-28 | 2020-08-25 | 欧司朗Oled股份有限公司 | Headlamp and method of operation |
| CN111750332A (en) * | 2020-07-03 | 2020-10-09 | 深圳高维照明技术有限公司 | Variable lighting device and automobile lamp |
| CN112969887A (en) * | 2018-11-08 | 2021-06-15 | 戴姆勒股份公司 | Vehicle headlamp with micro LED as light source |
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| JP2007095681A (en) * | 2005-09-26 | 2007-04-12 | Compal Communications Inc | Floodlight system with multiple light sources and multiple light axes |
| JP2016015303A (en) * | 2014-06-11 | 2016-01-28 | ヤマハ発動機株式会社 | Vehicular headlight and vehicle equipped with the same |
| CN207350120U (en) * | 2017-05-02 | 2018-05-11 | 深圳智诺车灯科技有限公司 | Far and near one LED headlamps |
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| JP2006252925A (en) * | 2005-03-10 | 2006-09-21 | Ichikoh Ind Ltd | Headlight for vehicle |
| JP2007095681A (en) * | 2005-09-26 | 2007-04-12 | Compal Communications Inc | Floodlight system with multiple light sources and multiple light axes |
| JP2016015303A (en) * | 2014-06-11 | 2016-01-28 | ヤマハ発動機株式会社 | Vehicular headlight and vehicle equipped with the same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111587343A (en) * | 2017-11-28 | 2020-08-25 | 欧司朗Oled股份有限公司 | Headlamp and method of operation |
| US11187392B2 (en) | 2017-11-28 | 2021-11-30 | Osram Oled Gmbh | Headlight and operating method |
| CN111587343B (en) * | 2017-11-28 | 2022-02-25 | 欧司朗Oled股份有限公司 | Headlamp and method of operation |
| CN112969887A (en) * | 2018-11-08 | 2021-06-15 | 戴姆勒股份公司 | Vehicle headlamp with micro LED as light source |
| CN112969887B (en) * | 2018-11-08 | 2024-02-06 | 梅赛德斯-奔驰集团股份公司 | Vehicle headlight with micro-LEDs as light sources |
| CN109373281A (en) * | 2018-11-13 | 2019-02-22 | 深圳智诺车灯科技有限公司 | A kind of LED automobile lower beam headlamp |
| CN111750332A (en) * | 2020-07-03 | 2020-10-09 | 深圳高维照明技术有限公司 | Variable lighting device and automobile lamp |
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| Publication number | Publication date |
|---|---|
| CN106989342B (en) | 2023-04-07 |
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Effective date of registration: 20230404 Address after: 518000 Zhaoye Factory Building 515, No. 172 Huanguan Middle Road, Songyuanxia Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Zihong Optical Technology Co.,Ltd. Address before: No. 8 Shajing Youchang Road, Bao'an District, Shenzhen City, Guangdong Province, 518000 Patentee before: SHENZHEN ZHINUO CAR LIGHT TECHNOLOGY CO.,LTD. |
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