CN102537844B - Automobile headlamp reflector and automobile headlamp - Google Patents
Automobile headlamp reflector and automobile headlamp Download PDFInfo
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- CN102537844B CN102537844B CN201010608446.4A CN201010608446A CN102537844B CN 102537844 B CN102537844 B CN 102537844B CN 201010608446 A CN201010608446 A CN 201010608446A CN 102537844 B CN102537844 B CN 102537844B
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- reflector
- bulb
- vehicle front
- lighting lamp
- front lighting
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Abstract
The invention relates to an automobile headlamp reflector and an automobile headlamp. The reflector is used for light distribution of a lamp bulb of the automobile headlamp. The reflector comprises a low beam reflection part and a high beam reflection part. A high beam reflection surface of the high beam reflection part is a revolution surface. The revolution surface is formed in a mode that a bus rotates around the axis of the lamp bulb. The bus is a spline. The automobile headlamp is provided with the reflector. According to the invention, the high beam reflection surface of the high beam reflection part of the reflector is the revolution surface obtained in a mode that the spindle rotates around the axis of the lamp bulb; the high beam reflection surface is very smooth; and compared with a reflection surface with a plurality of layers of free curve surfaces, the high beam reflection surface has the advantages that: light loss caused by transition between excessive surface blocks is avoided, and the problems that for the existing reflector, the high beam illumination is insufficiently converged and the illuminance cannot meet the requirement of the automobile lamp standard are solved.
Description
Technical field
The present invention relates to automobile lamp, more particularly, relate to a kind of vehicle front lighting lamp reflector and car headlamp.
Background technology
In order to guarantee road safety, the luminous intensity distribution of car headlamp has enforceable requirement, the light distribution requirements of necessary GB4599.As shown in Figure 1, for the conventional H4 bulb of car headlamp, the H4 bulb of standard has two filaments, and one of them is that 1, one of dip filament is headlight high beam filament 2, dip filament 1 is for lower beam illumination, it issues and is provided with light shield 4, under the light of avoiding dip filament 1 to send, penetrates, and affects far lighting, headlight high beam filament 2 is for far lighting, and bulb front end 3 is opaque.The distance d1 of the bottom surface of the centre distance lamp light bulb base 5 of dip filament 1 is 31.25mm, and at the bottom of the centre distance bulb of headlight high beam filament 2, the distance d2 of the bottom surface of base is 24.55mm.Fig. 2 is a kind of reflector of conventional H4 bulb, and this reflector adopts multilayer Random Curved Surface Designing, and the upper part 21 of reflector is mainly used in dipped beam luminous intensity distribution, and distance light is reflected and obtained by whole reflector.But when lighting headlight high beam filament 2, the light of its light after the light reflection surface reflection of upper part is too dispersed, and therefore, needs reflector lower part 22 to realize main distance light luminous intensity distribution.But because its lower part 22 also adopts multilayer Random Curved Surface Designing, and the free form surface of each fritter get meticulous, this design has very large advantage when design dipped beam, but for the distance light relatively converging, curved surface is divided into too many fritter and is unfavorable for optically focused, because the border of each fritter curved surface can be to break up light, cause distance light to converge not, illumination does not reach the requirement of car light standard.The reflector of existing H4 bulb much all exists distance light to converge not, the problem that illumination is bright not.In addition, existing reflector, owing to being subject to the impact of optical design, the opening size of reflector is larger, causes the volume of whole car headlamp larger.
Summary of the invention
The technical problem to be solved in the present invention is, the above-mentioned defect for the vehicle front lighting lamp reflector of prior art, provides a kind of vehicle front lighting lamp reflector and car headlamp, has good light distribution effect and less volume.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of vehicle front lighting lamp reflector, the luminous intensity distribution that is used for the bulb of vehicle front lighting headlamp, described reflector comprises dipped beam reflecting part and distance light reflecting part, it is characterized in that, the distance light reflecting surface of described distance light reflecting part is surface of revolution, by bus, the axis rotation around described bulb forms described surface of revolution, and described bus is SPL.
In vehicle front lighting lamp reflector of the present invention, described SPL is determined by five points.
In vehicle front lighting lamp reflector of the present invention, described bulb is H4 bulb, the axis of described bulb of take is X-axis, the opening direction of reflector of take is X-direction, the direction of take is straight down Y direction, take horizontal plane as XOZ plane, take the bottom surface of base of described bulb sets up Descartes's rectangular coordinate system as ZOY plane, the unit of described coordinate system is mm, the coordinate of described five points is: S1 (6.5, Y1, 0), S2 (12.0, Y2, 0), S3 (19.9, Y3, 0), S4 (28.6, Y4, 0), S5 (37.6, Y5, 0), wherein: Y1 is 24.7～27.3, Y2 is 33.4～37.0, Y3 is 42.9～47.5, Y4 is 51.8～57.2, Y5 is 59.4～65.6, S1 is the starting point of SPL, S5 is the terminal of SPL.
In vehicle front lighting lamp reflector of the present invention, the coordinate of described five points is: S1 (6.5,26.0,0), S2 (12.0,25.2,0), S3 (19.9,45.2,0), S4 (28.6,54.5,0), S5 (37.6,62.5,0).
In vehicle front lighting lamp reflector of the present invention, described SPL is B-spline curves.
In vehicle front lighting lamp reflector of the present invention, described surface of revolution by described bus around X-axis turn clockwise 75～85 degree, be rotated counterclockwise 60～70 degree obtain.
In vehicle front lighting lamp reflector of the present invention, described surface of revolution, is rotated counterclockwise 65 degree and obtains around X-axis 80 degree that turn clockwise by described bus.
In vehicle front lighting lamp reflector of the present invention, the bright dipping bore of described reflector is less than 130mm, and the degree of depth of described reflector is less than 60mm.
In vehicle front lighting lamp reflector of the present invention, the dipped beam reflecting surface of described dipped beam reflecting part is multilayer free form surface.
The present invention also provides a kind of car headlamp, comprises housing, and is placed in the bulb in housing, also comprises the reflector being as previously discussed arranged in lamp housing.
Implement vehicle front lighting lamp reflector of the present invention, there is following beneficial effect: the surface of revolution of the distance light reflecting surface of the distance light reflecting part of reflector of the present invention for being obtained around the rotation of bulb axis by SPL, this distance light reflecting surface is very smooth, compare with the reflecting surface of multilayer free form surface, avoided the light loss causing due to too much face piece and the transition between face piece, the far lighting that has solved existing reflector existence converges not, and illumination does not reach the defect of the requirement of car light standard.And the volume of reflector also reduces greatly, be conducive to the reducing of volume of car headlamp.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the schematic diagram of the H4 bulb used of car headlamp;
Fig. 2 is the schematic diagram of the vehicle front lighting lamp reflector of prior art;
Fig. 3 is A-A profile in Fig. 2;
Fig. 4 is the schematic diagram of the preferred embodiment of vehicle front lighting lamp reflector of the present invention;
Fig. 5 is the front view of the preferred embodiment of vehicle front lighting lamp reflector of the present invention;
Fig. 6 is B-B profile in Fig. 5;
Fig. 7 is the schematic diagram of the bus of distance light reflection part in vehicle front lighting lamp reflector of the present invention;
Fig. 8 is the schematic diagram of the preferred embodiment of car headlamp of the present invention;
Fig. 9 is the schematic diagram of the test zone of car headlamp;
Figure 10 is the schematic diagram of the test screen of car headlamp.
The specific embodiment
Vehicle front lighting lamp reflector of the present invention is for the luminous intensity distribution of the bulb of vehicle front lighting headlamp, reflector comprises dipped beam reflecting part and distance light reflecting part, during use, dipped beam reflecting part is positioned at the top of reflector, i.e. face portion remotely, distance light reflecting part is positioned at the bottom of reflector, closes on above ground portion; What this reflector was different from existing reflector is, the distance light reflecting surface of distance light reflecting part is surface of revolution, by bus, the axis rotation around described bulb forms surface of revolution, bus is SPL, be preferably B-spline curves, the distance light reflecting surface forming is thus very smooth, compare with the reflecting surface of multilayer free form surface, avoided the light loss causing due to too much face piece and the transition between face piece, the far lighting that has solved existing reflector existence converges not, and illumination does not reach the defect of the requirement of car light standard.
For technical characterictic of the present invention, object and effect being had more clearly, understand, now contrast accompanying drawing and describe a specific embodiment of the present invention in detail.
As shown in Figures 4 to 7, be the preferred embodiment of vehicle front lighting lamp reflector of invention, the reflector of the present embodiment is for the luminous intensity distribution of H4 bulb.This reflector 100 has dipped beam reflecting part 110 and distance light reflecting part 120, dipped beam reflecting part 110 is positioned at the top of reflector 100, for dip filament 1 is carried out to luminous intensity distribution, realize the needs of lower beam illumination, distance light reflecting part 120 is positioned at the bottom of reflector 100, for headlight high beam filament 2 is carried out to luminous intensity distribution, to realize the needs of far lighting.The dipped beam reflecting surface of dipped beam reflecting part 110 is 111 for multilayer free form surface, can meet the requirement of lower beam illumination.The distance light reflecting surface 121 of distance light reflecting part 120 is surface of revolution, by bus 130, the axis rotation around H4 bulb forms surface of revolution, this bus 130 is SPL, the dipped beam reflecting surface obtaining is like this very smooth, avoided the light loss causing due to too much face piece and the transition between face piece, the far lighting that has solved existing reflector existence converges not, illumination does not reach the defect of the requirement of car light standard, further this bus 130 is preferably B-spline curves, transition more can be level and smooth, and light distribution effect is better.
In the present embodiment, the B-spline curves of formation bus 130 are determined by five points, specifically: the axis of H4 bulb of take is X-axis, the opening direction of reflector 100 is X-direction, the direction of take is straight down Y direction, take horizontal plane as XOZ plane, take the bottom surface of base 5 of H4 bulb sets up Descartes's rectangular coordinate system as ZOY plane, the unit of this coordinate system is mm, the coordinate of determining five points of bus 130 is: S1 (6.5, 26.0, 0), S2 (12.0, 25.2, 0), S3 (19.9, 45.2, 0), S4 (28.6, 54.5, 0), S5 (37.6, 62.5, 0), S1 is the starting point of B-spline curves, S5 is the terminal of B-spline curves.
Wherein five points can have 5% float at vertical direction, and also the coordinate of five points can be: S1 (6.5, Y1,0), S2 (12.0, Y2,0), S3 (19.9, Y3,0), S4 (28.6, Y4,0), S5 (37.6, Y5,0), wherein: Y1 is that 24.7～27.3, Y2 is that 33.4～37.0, Y3 is 42.9～47.5, Y4 is that 51.8～57.2, Y5 is 59.4～65.6.
The surface of revolution that forms dipped beam reflecting surface 121 can, by bus 130 around X-axis 75～85 degree that turn clockwise, be rotated counterclockwise 60～70 degree and obtain.In the present embodiment, this surface of revolution bus 130, around X-axis 80 degree that turn clockwise, is rotated counterclockwise 65 degree and obtains.
The size of reflector of the present invention reduces greatly, and the bright dipping bore of reflector is less than 130mm, and the degree of depth of reflector is less than 60mm.Specifically in the present embodiment, the light-emitting window diameter of reflector 100 is only 125mm, and the degree of depth of reflector is 51.4mm, and with respect to existing vehicle front lighting lamp reflector, the size of reflector reduces greatly, is conducive to the reducing of volume of car headlamp.
It will be appreciated that, the design parameter of bus 130 of the speculum of above-described embodiment and the relating to parameters of bulb, reflector of the present invention is not limited to H4 bulb and coordinates, be equally applicable to the automotive head lamp bulb of other types, the design parameter of reflector also can change to some extent along with the change of the parameter of bulb.
As shown in Figure 8, a preferred embodiment for car headlamp of the present invention, comprises lamp housing 10, and is placed in the H4 bulb 11 in lamp housing, the reflector of the preferred embodiment that its reflector 100 is above-mentioned reflector.
According to the requirement to dipped beam, high beam luminous intensity distribution performance in < < GB 4599-2007 lamps for vehicle silk bulb headlamp > >, survey to such an extent that the brightness value in each point, line segment or the region that need detect of headlamp of proposing of car headlamp preferred embodiment of the present invention sees the following form.Each illumination that need detect target all meets the requirement of GB 4599-2007.
(1) dipped beam:
0.7lx >=test point 7=0.43 >=0.1lx is qualified;
0.7lx >=test point 8=0.56 >=0.2lx is qualified;
(2) distance light:
| Test point or region | Standard-required brightness value (lx) | Illuminations actually measured value (lx) | Conclusion |
| Emax | >=48 and≤240 | 60 | Qualified |
| HV | ≥0.8Emax | 57 | Qualified |
| HV point is to 1125L and R | ≥24 | L≥29，R≥32 | Qualified |
| HV point is to 2250L and R | ≥6 | L≥9，R≥11 | Qualified |
In table, shown in the location drawing 9 of each point, refer in detail < < GB 4599-2007 lamps for vehicle silk bulb headlamp > > P.5-6.Figure 10 is the schematic diagram of test screen.
By above test data, can be found out, the light distribution requirements of vehicle front lighting lamp reflector of the present invention and car headlamp meets the requirement to dipped beam, high beam luminous intensity distribution performance in < < GB 4599-2007 lamps for vehicle silk bulb headlamp > > completely.
The surface of revolution of the distance light reflecting surface of the distance light reflecting part of reflector of the present invention for being obtained around the rotation of bulb axis by SPL, this distance light reflecting surface is very smooth, compare with the reflecting surface of multilayer free form surface, avoided the light loss causing due to too much face piece and the transition between face piece, the far lighting that has solved existing reflector existence converges not, and illumination does not reach the defect of the requirement of car light standard.And the volume of reflector also reduces greatly, be conducive to the reducing of volume of car headlamp.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (7)
1. a vehicle front lighting lamp reflector, the luminous intensity distribution that is used for the bulb of car headlamp, described reflector comprises dipped beam reflecting part and distance light reflecting part, it is characterized in that, the distance light reflecting surface of described distance light reflecting part is surface of revolution, by bus, the axis rotation around described bulb forms described surface of revolution, and described bus is SPL;
Described SPL is determined by five points, the axis of described bulb of take is X-axis, the opening direction of reflector of take is X-direction, the direction of take is straight down Y direction, take horizontal plane as XOZ plane, take the bottom surface of base of described bulb sets up Descartes's rectangular coordinate system as ZOY plane, the unit of described coordinate system is mm, the coordinate of described five points is: S1(6.5, Y1, 0), S2(12.0, Y2, 0), S3(19.9, Y3, 0), S4(28.6, Y4, 0), S5(37.6, Y5, 0), wherein: Y1 is 24.7～27.3, Y2 is 33.4～37.0, Y3 is 42.9～47.5, Y4 is 51.8～57.2, Y5 is 59.4～65.6, S1 is the starting point of SPL, S5 is the terminal of SPL,
Described surface of revolution by described bus around X-axis turn clockwise 75～85 degree, be rotated counterclockwise 60～70 degree obtain;
The dipped beam reflecting surface of described dipped beam reflecting part is multilayer free form surface.
2. vehicle front lighting lamp reflector according to claim 1, is characterized in that, described bulb is H4 bulb.
3. vehicle front lighting lamp reflector according to claim 1, is characterized in that, the coordinate of described five points is: S1(6.5,26.0,0), S2(12.0,25.2,0), S3(19.9,45.2,0), S4(28.6,54.5,0), S5(37.6,62.5,0).
4. according to the vehicle front lighting lamp reflector described in claims 1 to 3 any one, it is characterized in that, described SPL is B-spline curves.
5. vehicle front lighting lamp reflector according to claim 4, is characterized in that, described surface of revolution, is rotated counterclockwise 65 degree and obtains around X-axis 80 degree that turn clockwise by described bus.
6. vehicle front lighting lamp reflector according to claim 4, is characterized in that, the bright dipping bore of described reflector is less than 130mm, and the degree of depth of described reflector is less than 60mm.
7. a car headlamp, comprises housing, and is placed in the bulb in housing, it is characterized in that, also comprises the reflector as described in claim 1 to 6 any one being arranged in lamp housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608446.4A CN102537844B (en) | 2010-12-24 | 2010-12-24 | Automobile headlamp reflector and automobile headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608446.4A CN102537844B (en) | 2010-12-24 | 2010-12-24 | Automobile headlamp reflector and automobile headlamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537844A CN102537844A (en) | 2012-07-04 |
| CN102537844B true CN102537844B (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010608446.4A Expired - Fee Related CN102537844B (en) | 2010-12-24 | 2010-12-24 | Automobile headlamp reflector and automobile headlamp |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277741B (en) * | 2013-05-06 | 2016-04-13 | 浙江天翀车灯集团有限公司 | A kind of lighting burst reflecting and light distributing method and lighting |
| CN104214675B (en) * | 2013-05-31 | 2016-05-18 | 海洋王（东莞）照明科技有限公司 | Reflector assembly and apply the light fixture of this reflector assembly |
| CN112902105B (en) * | 2021-03-25 | 2022-09-30 | 兰普电器股份有限公司 | Special-shaped side reflection headlamp |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160137A (en) * | 1996-02-23 | 1997-09-24 | 电灯专利信托有限公司 | Automotive headlight for near and far lighting and its light tube |
| EP1070912A2 (en) * | 1999-07-23 | 2001-01-24 | Ichikoh Industries Limited | Headlamp and method for manufacturing reflector in the headlamp |
| CN1410702A (en) * | 2001-10-05 | 2003-04-16 | 市光工业株式会社 | Headlamp |
| CN1502500A (en) * | 2002-11-25 | 2004-06-09 | 本田技研工业株式会社 | Front lamp for vehicle |
| CN101725879A (en) * | 2008-10-30 | 2010-06-09 | 市光工业株式会社 | Vehicle headlamp |
| CN101793372A (en) * | 2009-01-30 | 2010-08-04 | 市光工业株式会社 | Vehicle headlamp |
| CN101858560A (en) * | 2010-04-16 | 2010-10-13 | 海洋王照明科技股份有限公司 | High beam lamp reflector, high beam lamp and motor vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3160828B2 (en) * | 1993-12-22 | 2001-04-25 | 株式会社小糸製作所 | Vehicle headlight reflector |
| JP3233545B2 (en) * | 1995-02-17 | 2001-11-26 | 株式会社小糸製作所 | Reflector of vehicle lamp and method of forming the same |
-
2010
- 2010-12-24 CN CN201010608446.4A patent/CN102537844B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160137A (en) * | 1996-02-23 | 1997-09-24 | 电灯专利信托有限公司 | Automotive headlight for near and far lighting and its light tube |
| EP1070912A2 (en) * | 1999-07-23 | 2001-01-24 | Ichikoh Industries Limited | Headlamp and method for manufacturing reflector in the headlamp |
| CN1410702A (en) * | 2001-10-05 | 2003-04-16 | 市光工业株式会社 | Headlamp |
| CN1502500A (en) * | 2002-11-25 | 2004-06-09 | 本田技研工业株式会社 | Front lamp for vehicle |
| CN101725879A (en) * | 2008-10-30 | 2010-06-09 | 市光工业株式会社 | Vehicle headlamp |
| CN101793372A (en) * | 2009-01-30 | 2010-08-04 | 市光工业株式会社 | Vehicle headlamp |
| CN101858560A (en) * | 2010-04-16 | 2010-10-13 | 海洋王照明科技股份有限公司 | High beam lamp reflector, high beam lamp and motor vehicle |
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| CN102537844A (en) | 2012-07-04 |
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