CN101570155A - Difunctional headlamp for motor vehicle - Google Patents
Difunctional headlamp for motor vehicle Download PDFInfo
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- CN101570155A CN101570155A CNA2008100928397A CN200810092839A CN101570155A CN 101570155 A CN101570155 A CN 101570155A CN A2008100928397 A CNA2008100928397 A CN A2008100928397A CN 200810092839 A CN200810092839 A CN 200810092839A CN 101570155 A CN101570155 A CN 101570155A
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- head lamp
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Abstract
The invention discloses a difunctional headlamp for a motor vehicle, which achieves a first function and a second function. The first function refers to a beam with a light and shade dividing line, particularly a passing beam, and the second function refers to a beam of the second type, particularly a driving beam. The headlamp comprises an elliptical reflector (1), a light source (S), an optical device and a retractable shade, wherein the elliptical reflector comprises an inner focus and an outer focus on an optical axis; the light source is arranged near the inner focus; the optical device is arranged in front of the reflector and has a focus superposed or adjacent to the outer focus of the reflector; and the retractable shade (M) can occupy an active position for the beam with the light and shade dividing line and a retraction position for the beam of the second type; the shade located on the active position is produced on the light and shade dividing edge near the focus of the optical device; the shade (M) is provided with a reflection surface which is arranged at the lower part of the reflector on the retraction position and rotates forward for forming a beam of the second type.
Description
Technical field
The present invention relates to a kind of Difunctional headlamp that is used for self-propelled vehicle, first function that this head lamp is realized is for having the light beam of "cut-off"line (cut-off), and second function is the light beam of second type, especially driving beam.
Background technology
The head lamp of type involved in the present invention comprises:
-one elliptical reflector, in this elliptical reflector has on optical axis focus and outside focus,
-one is arranged near the light source the interior focus,
-one is arranged on the optics in parasite the place ahead, and its focus overlaps or is close to the outer focus of parasite,
-and a retractible blind, this retractible blind can occupy the position and be used for the retracted position of the second type light beam of working that is used for the light and shade cutoff beam, and the blind of position is created near the focus of described optics light and shade by the edge in action.
Summary of the invention
Purpose of the present invention mainly provides a kind of Difunctional headlamp, described difunctional especially dipped beam/driving beam, and described Difunctional headlamp produces appropriate brightness and light quantity by the halogen-type light source, and is particularly useful for driving beam.Wish that also this difunctional module shows one's talent from existing module when keeping better simply structure by its principle and pattern.
According to the present invention, the blind of the head lamp of the type that limits above has a reflecting surface, and this reflecting surface is arranged on the bottom of parasite when retracted position, rotates forward, and helps to form the second type light beam.Preferably, this blind is made of the part of parabolic complex surface.
Preferably, described head lamp comprises the complex surface that at least one is fixing in its underpart, and this complex surface is only operated when blind is positioned at retracted position, to help to form the second type light beam according to the light beam that passes the optics that is arranged on parasite the place ahead.
The advantage of described head lamp is that at least one complex surface at an upper portion thereof is arranged to beam reflection above lens contour, and helps to form the light beam and the second type light beam with "cut-off"line.
Blind can be withdrawn by rotating around a transverse horizontal axis perpendicular to optical axis.
The optics of head lamp can be formed by the convergent lens focus.These lens can be installed in one to have in the framework of lug of radial protrusion, and this protruding lug allows to be fixed on the shell, reserves a clearance envelope simultaneously, is used to make light beam to pass through between the profile of the profile of lens and shell.Described lens can be limited by two vertical lines sides.
The control of blind has the advantage by the stepper motor operation.The control of this stepper motor can have the function of so-called " express highway (motorway) ", so the "cut-off"line of passing beam compares a few tenths of degree that raises with common passing beam, especially between 2/10ths degree are spent with 6/10ths.
Described head lamp can comprise a parking lamp, the bottom in the clearance envelope of this parking lamp between the profile of the profile of lens and shell.
In making modification, the head lamp blind can be according to the location of at least one midway location between position and the retracted position in action, compare at the "cut-off"line of the described light beam that produces during the position of working with described blind, this makes to produce to have than the light beam of blind at the high "cut-off"line of the described light beam "cut-off"line that produces during the position of working.Preferably, the move through stepper motor of blind from a position to another position realized.
Description of drawings
Except layout set forth above, the present invention has other layout of some, and an example hereinafter is described with reference to the accompanying drawings, so that described other layout clearly to be discussed.In the accompanying drawings:
Fig. 1 is the schematic side transparent view of the head lamp under the dipped beam structure according to the present invention, and wherein blind is in the position of working;
Fig. 2 is the schematic front perspective view of the head lamp under the driving beam structure according to the present invention, and wherein blind is in retracted position;
Fig. 3 is that wherein blind is in the position of working that is used for passing beam through the schematic vertical cross-section of head lamp optical axis;
Fig. 4 is the vertical cross-section that is similar to Fig. 3 of head lamp, and wherein blind is in the retracted position that is used for driving beam; And
Fig. 5 a illustrates modulation according to the head lamp light beam of the embodiment of the invention to Fig. 5 e.
The specific embodiment
Observe Fig. 1 and Fig. 2, can see a headlamp for vehicles P, this head lamp is designed to have difunctional, and a function is the light beam with "cut-off"line, i.e. passing beam, and another function is second type light beam, the i.e. driving beam.
Head lamp P comprises elliptical reflector 1, perhaps more accurately, by the parasite that a series of continuous or discontinuous surfaces form, the vertical bus of each all approaches ellipse in these surfaces, and abbreviates " elliptical reflector " as in specification sheets and claims.When head lamp P was installed on the vehicle, the optical axis A-A level of approximation of parasite was parallel to the vertical of vehicle.Elliptical reflector 1 comprises: major part 1a, and these parts 1a is above the horizontal surface through optical axis A-A; With parts 1b, these parts 1b and extends so far away forward below described horizontal surface unlike parts 1a.Term " forward " and " backward " are understood according to the direction of propagation of light, and described light quilt is to front-reflection.
In parasite 1 has on optical axis A-A focal point F i and outside focal point F e.At interior focal point F i place or be provided with the light source S that schematically shows with any near it.Light source S can be an xenon lamp.Be provided with the optics of assembling the L shaped one-tenth of lens by one in parasite 1 the place ahead.The focus of lens L overlaps or is close to the outer focal point F e of parasite 1.
Retractible blind M occupies the position or be used for the retracted position of driving beam as shown in Fig. 2 and 4 of working of the passing beam that is used to have "cut-off"line as shown in Fig. 1 and 3.
Blind M rotates around axis 2 (Fig. 3) is installed, and this axis 2 is positioned at described optical axis below, and is positioned at focal point F i the place ahead perpendicular to optical axis A-A.When blind M is in when working the position, its upper limb Mh is positioned near the focus and outer focal point F e of lens L, and forms the edge that the light beam light and shade is ended, this edge in horizontal surface approximately perpendicular to optical axis A-A.
In the present invention, retractible blind is that the part by the reflective complex surface of a parabola forms, and this blind is positioned at the bottom of parasite 1 when retracted position (Fig. 2 and 4).
The statement of using in specification sheets and claims " complex surface " or " parabolic complex surface " refer to the reflecting surface that is formed by a plurality of facets usually, and the especially vertical line of the bus of described a plurality of facets is near parabola.When the parabolic complex surface occupies when helping form the position of light beam, especially when blind M was positioned at retracted position, the focus of each facet overlapped with bottom focus (the lower focal point) Fi of parasite 1 or is close.
Head lamp also has at least one and is preferably a plurality of complex reflex surface 3a, 3b, 3c that fix with respect to parasite 1 in the bottom, when blind M was positioned at retracted position (Fig. 4), described complex reflex surface 3a, 3b, 3c helped to form driving beam.Complex surface 3a, the 3b of bottom, the focus of 3c are positioned near the focal point F i or with this focus and overlap.
Such as r5 (Fig. 4) by complex surface 3a, the 3b of bottom, 3c reflection and the light that is parallel to optical axis A-A annular space 4 in through below the lens L or sidepiece, this annular space 4 between the shell (not shown) of the profile of lens and maintenance head lamp around lens.Lens L is kept by framework 5 (Fig. 1), and the lug 6 of three radial protrusions is coupled on the shell described framework 5, and it is empty keeping space 4 simultaneously.
The reflective array that is formed by parasite 1 and complex surface 3a, 3b, 3c has a recess in the bottom, blind M ensconces in this recess when retracted position.At this retracted position, the reflecting surface of blind M rotates forward to help to form driving beam.The complex surface of blind M replenishes complex surface 3a, 3b, 3c.
As shown in Figure 2, head lamp P can have at least one complex reflex surface 7 on top, and the forward edge of this reflecting surface 7 and the top of lens are radially spaced.The focus of complex surface 7 overlaps with the bottom focal point F i of parasite 1 or is close.No matter blind M is positioned at work position or retracted position, and surface 7 all allows the light that helps to form dipped beam and driving beam and is reflected to lens L top.
The front elevation of lens L illustrates the profile that is formed by last arc, following arc and each vertical lines edge, side.
In annular space 4, be formed on above the lens L in the opening in the parasite 4 parking lamp V can be installed.
The advantage of the control of blind M is, operate by the stepper motor (not shown), and has " express highway " function, compare with the "cut-off"line of common passing beam, this function makes the "cut-off"line of the passing beam a few tenths of degree that raises, and especially spends between 6/10ths degree 2/10ths.The series of steps that moves through motor of this "cut-off"line and realizing reduces top by edge Mh when working the position to be positioned at as blind M, this causes the "cut-off"line of light beam to raise.
Fig. 5 a shows the modulation of the head lamp light beam 10 of the present invention that obtains by the embodiment with stepper motor to 5e.Fig. 5 a shows as blind M and is in the common passing beam that being used for of obtaining when working the position travel on the right side.This common passing beam has "cut-off"line 11 and sloping portion 12, this "cut-off"line 11 has level of approximation part 13, this level of approximation part 13 can avoid making chaufeur order road or this vehicle front that passes the vehicle that head lamp of the present invention is housed to dazzle, and described sloping portion 12 can make the roadside, right side be illuminated.Fig. 5 e shows the driving beam that obtains when blind M is positioned at retracted position.It should be noted that and obtain two kinds of forms of dipped beam and driving beam, for example shown in Fig. 5 a and the 5e among the embodiment of only work there not being stepper motor position and two blind positions of retracted position.In being provided with the embodiment of stepper motor, blind will have one or more midways location between position and the retracted position in action.By illustrative method, Fig. 5 b shows the form of the light beam that obtains at three midways location to 5d.Like this, in this example, blind M moves the four-dimensieonal angle from the position of working to first interposition, light beam thus from dipped beam formula light beam (Fig. 5 a) is changed to " express highway " formula light beam (Fig. 5 b) that has "cut-off"line, wherein "cut-off"line 11 not only raises with respect to inclination "cut-off"line 12, and raises with respect to the light and shade barrier portion of the level of approximation that is positioned at these inclination "cut-off"line 12 left sides.Can move 8 degree location blind M from its position of working by making blind M, so that light beam 10 is become the form shown in Fig. 5 c, this form also is " express highway " formula light beam, but its "cut-off"line 11 is than high among Fig. 5 b.For further rising "cut-off"line 11, blind M can be brought to the 3rd interposition, and wherein blind moves 10 degree from its position of working; This has produced the light beam shown in Fig. 5 d.Certainly, the variation of light beam also can realize in the following manner, that is, move to the position of working from retracted position, thereby select the position of blind M to obtain correct light beam.The number of midway location changes according to embodiment.Equally, the mode that angle between position and the interposition changes with example that works provides.Equally, example illustrates and is used for the "cut-off"line that travels in the right side, but embodiment can be exchanged into and is used for left driving.For left driving, the dead line that illustrates will overturn with respect to the dead line that is used for travelling on the right side, thereby obtain along the symmetry of Fig. 5 a to the vertical axis shown in the 5e.
Blind M can be 80 ° the order of magnitude at the rotation amplitude between position and the driving beam position of working that is used for passing beam.
The operation of head lamp is as described below.
When light source S opens, obtain first function, i.e. passing beam by the blind M that is positioned at the position of working shown in Fig. 1 or 3.Be reflected along light r1 from light source S and the light i1 (Fig. 3) that drops on elliptical reflector 1 top, this light r1 passes near outer focal point F e or this focus.Light r1 propagates downwards, after passing lens L, is parallel to optical axis A-A or has downward degree of dip.
Be reflected into r2 downwards from light source S and the light i2 that drops on parasite 1 top.Penetrate behind the lens L inclination that will keep down of this light.
From light source S and the light i3 under pointing to be reflected into light r3 in the sensing by the bottom 1b of elliptical reflector, just the nuzzle up upper limb of blind of this light.After passing lens L, be parallel to optical axis A-A if this light r3 passes the focus of lens and penetrate, if perhaps this light r3 is crossing then be refracted on the downward direction with optical axis A-A at the lens focus rear.
The bottom 1b reflection of device and tackled by blind M with the crossing light of optical axis A-A in lens focus the place ahead is reflected, so that make them can not produce additional (parasitic) light, this additional light penetrates lens L in the upward direction and will pass through above the "cut-off"line of light beam requirement.
By making blind M by rotate about 80 ° and reduce forward and obtain the second driving beam function around axis 2.In a single day blind M reduces, and is located in the recess of elliptical reflector 1 and complex surface 3a, 3b, 3c bottom.
The depression reflecting surface of blind M replenishes complex reflex surface, bottom 3a, 3b, the 3c of head lamp P.
By oval parts 1a, 1b reflection, light r2, r3 pass lens L along light r2, r3 for light i2, i3.
Drop on such as the light under the sensing of i4 on the depression reflecting surface of blind M and along light r4 and be reflected, this light r4 also passes lens.
The light from light source such as i5 drops on one of them of bottom complex surface 3a, 3b, 3c, and is reflected along light r5, this light r5 be basically parallel to optical axis A-A and below lens L through and be not refracted.
Compare with the light quantity that obtains by simple elliptical reflector, the light quantity that obtains in the driving beam position by retractible blind increases.
When light source S is halide torch, the invention provides a kind of two halide torch modules (bihalogen module) with good driving beam flux, this pair halide torch module is shown one's talent from present module by its principle and pattern.For driving beam, to compare with two halide torchs of standard, head lamp according to the present invention makes flux increase about 25%.
The location of the removable minute surface that is formed by blind M does not almost have injurious effects, because its most important function is the flux of compensation driving beam, mainly provides more facility than traditional two halide torch modules.
Head lamp according to the present invention has very big flexibility, and to distribute the light quantity of driving beam according to the qualification of complex surface, simultaneously by mobile blind, the light of hiding in conventional module is released, and is increased in the flux of passing beam.
Claims (12)
1. Difunctional headlamp that is used for self-propelled vehicle, described head lamp is realized first function and second function, described first function is the light beam with "cut-off"line, especially passing beam, described second function is second type light beam, the especially driving beam, and described head lamp comprises:
-one elliptical reflector, described elliptical reflector have on optical axis interior focus and outside focus,
-one is arranged near the light source the interior focus,
-one is arranged on the optics in parasite the place ahead, and its focus overlaps or is close to the outer focus of parasite,
-and a retractible blind, described retractible blind can occupy and be used for described work position and the retracted position that is used for the described second type light beam with light beam of "cut-off"line, the blind that is in the position of working produces near the light and shade of focus that is positioned at described optics and ends the edge
It is characterized in that described blind has a reflecting surface, the described reflecting surface that is arranged on described parasite bottom when retracted position rotates forward, and helps to form the described second type light beam.
2. head lamp as claimed in claim 1, wherein said blind are that the part by the complex surface of parabolic constitutes.
3. head lamp as claimed in claim 1 comprises the complex surface that at least one is fixing in its underpart, described at least one fixing complex surface only helps to form the second type light beam by the light that passes described optics during at retracted position when blind.
4. head lamp as claimed in claim 1, wherein said head lamp comprises at least one complex surface at an upper portion thereof, described at least one complex surface is arranged to reflection light is reflexed to optics profile top, and helps to form the light and shade cutoff beam and the second type light beam.
5. head lamp as claimed in claim 1, wherein said blind is withdrawn by winding perpendicular to the transverse horizontal axis rotation of optical axis.
6. head lamp as claimed in claim 1, the described optics of wherein said head lamp is formed by convergent lens.
7. head lamp as claimed in claim 6, wherein said lens are installed in the framework of the lug with radial protrusion, the lug of described projection allows to be fixed on the shell, reserves a clearance envelope simultaneously, and described clearance envelope is used for light to be passed through between the profile of described lens and described shell.
8. head lamp as claimed in claim 6, wherein said lens are limited by two vertical lines sides.
9. head lamp as claimed in claim 1, wherein said blind is by stepper motor control.
10. head lamp as claimed in claim 9, the control of wherein said stepper motor has " express highway " function, described " express highway " function allows the "cut-off"line of described passing beam to compare a few tenths of degree that raises with common passing beam, especially between 2/10ths degree and 6/10ths degree.
11. head lamp as claimed in claim 7 comprises a parking lamp, described parking lamp is installed in the bottom in the clearance envelope between the profile of the profile of described lens and described shell.
12. head lamp as claimed in claim 1, wherein said blind can be positioned at least one midway location, described at least one midway location works between position and the described retracted position described, thereby compare at the described light beam "cut-off"line that forms during the position that works with blind, allow to form light beam with higher "cut-off"line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100928397A CN101570155B (en) | 2008-05-04 | 2008-05-04 | Difunctional headlamp for motor vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100928397A CN101570155B (en) | 2008-05-04 | 2008-05-04 | Difunctional headlamp for motor vehicle |
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| Publication Number | Publication Date |
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| CN101570155A true CN101570155A (en) | 2009-11-04 |
| CN101570155B CN101570155B (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100928397A Expired - Fee Related CN101570155B (en) | 2008-05-04 | 2008-05-04 | Difunctional headlamp for motor vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906969A (en) * | 2011-09-07 | 2014-07-02 | 法雷奥照明公司 | Optical module for motor vehicle headlamp |
| TWI558943B (en) * | 2014-04-18 | 2016-11-21 | 王正 | Vehicle lamp module |
| CN106537030A (en) * | 2014-06-08 | 2017-03-22 | 法雷奥北美有限公司 | Thin aspect lighting system with cutoff line |
| CN109398220A (en) * | 2017-08-18 | 2019-03-01 | 深圳市绎立锐光科技开发有限公司 | Headlight regulating device and system |
| CN109690177A (en) * | 2016-09-21 | 2019-04-26 | 株式会社小糸制作所 | Headlight for automobile |
| CN110094688A (en) * | 2018-01-29 | 2019-08-06 | 诚益光电科技股份有限公司 | Intelligent head lamp |
| CN111947101A (en) * | 2014-09-30 | 2020-11-17 | 法雷奥照明公司 | Luminous lighting and/or signalling module for a motor vehicle |
| CN114729736A (en) * | 2019-11-29 | 2022-07-08 | 法雷奥照明公司 | Connection between regions of a light module reflector having a cut-off line |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3949300B2 (en) * | 1998-11-20 | 2007-07-25 | 株式会社小糸製作所 | Vehicle headlamp |
| CN2625203Y (en) * | 2003-06-19 | 2004-07-14 | 上海小糸车灯有限公司 | Head light of automobile capable of changing light form conveniently |
| DE102004018424B4 (en) * | 2004-04-08 | 2016-12-08 | Docter Optics Se | Process for producing a lens |
| CN1847053A (en) * | 2005-04-13 | 2006-10-18 | 堤维西交通工业股份有限公司 | Far and near vehicle lamp switcher |
| CN2844664Y (en) * | 2005-05-18 | 2006-12-06 | 广东雪莱特光电科技股份有限公司 | Adjusting assembled light with dual-xenon golden halogen for automobile |
| CN2863556Y (en) * | 2005-11-01 | 2007-01-31 | 上海小糸车灯有限公司 | Shifter for distance light and dimmer light of vehicle heat lamp |
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2008
- 2008-05-04 CN CN2008100928397A patent/CN101570155B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906969A (en) * | 2011-09-07 | 2014-07-02 | 法雷奥照明公司 | Optical module for motor vehicle headlamp |
| TWI558943B (en) * | 2014-04-18 | 2016-11-21 | 王正 | Vehicle lamp module |
| US11221119B2 (en) | 2014-06-08 | 2022-01-11 | Valeo North America, Inc. | Thin aspect lighting system with cutoff |
| CN106537030B (en) * | 2014-06-08 | 2020-05-19 | 法雷奥北美有限公司 | Low profile lighting system with cutoff |
| CN106537030A (en) * | 2014-06-08 | 2017-03-22 | 法雷奥北美有限公司 | Thin aspect lighting system with cutoff line |
| US11384912B2 (en) | 2014-06-08 | 2022-07-12 | Valeo North America, Inc. | Thin aspect lighting system with cutoff |
| US11686446B2 (en) | 2014-06-08 | 2023-06-27 | Valeo North America, Inc. | Thin aspect lighting system with cutoff |
| CN111947101A (en) * | 2014-09-30 | 2020-11-17 | 法雷奥照明公司 | Luminous lighting and/or signalling module for a motor vehicle |
| CN109690177A (en) * | 2016-09-21 | 2019-04-26 | 株式会社小糸制作所 | Headlight for automobile |
| CN109690177B (en) * | 2016-09-21 | 2024-01-12 | 株式会社小糸制作所 | Headlight for vehicle |
| CN109398220A (en) * | 2017-08-18 | 2019-03-01 | 深圳市绎立锐光科技开发有限公司 | Headlight regulating device and system |
| CN110094688A (en) * | 2018-01-29 | 2019-08-06 | 诚益光电科技股份有限公司 | Intelligent head lamp |
| CN110094688B (en) * | 2018-01-29 | 2021-07-23 | 诚益光电科技股份有限公司 | Intelligent head lamp |
| CN114729736A (en) * | 2019-11-29 | 2022-07-08 | 法雷奥照明公司 | Connection between regions of a light module reflector having a cut-off line |
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| CN101570155B (en) | 2012-03-28 |
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Application publication date: 20091104 Assignee: Hubei Valeo Automotive Lighting Co.,Ltd. Assignor: Valeo Vision Contract record no.: 2013990000150 Denomination of invention: Difunctional headlamp for motor vehicle Granted publication date: 20120328 License type: Exclusive License Record date: 20130415 |
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