CN1097697C - Automotive headlamp - Google Patents
Automotive headlamp Download PDFInfo
- Publication number
- CN1097697C CN1097697C CN99106489A CN99106489A CN1097697C CN 1097697 C CN1097697 C CN 1097697C CN 99106489 A CN99106489 A CN 99106489A CN 99106489 A CN99106489 A CN 99106489A CN 1097697 C CN1097697 C CN 1097697C
- Authority
- CN
- China
- Prior art keywords
- lamp
- reflection part
- light
- reflection
- filament
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0029—Spatial arrangement
- B60Q1/0041—Spatial arrangement of several lamps in relation to each other
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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
- F21S41/10—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
In a vehicular headlamp to realize low cost and secure reflector reflected light flux of each reflector unit sufficiently even if a discharge bulb is used, having both light distribution functions of a headlamp and a fog lamp. The light source of a reflector unit (18) is formed from a discharge bulb (22) and the light source of a reflector unit (20) is formed from a incandescent bulb 28 having a double filament (28a, 28b) in relation to two reflectors arranged in a lamp chamber (16). Then a light distribution pattern for a passing beam of a head lamp is formed by the reflector unit (18), and a light distribution pattern for a traveling beam of the headlamp and a light distribution pattern for a fog lamp are formed by the reflector unit (20).
Description
Technical field
The present invention relates to have simultaneously the automotive headlamp of the light distributing function of head lamp and fog lamp.
Background technology
As automotive headlamp, people know so-called compound type head lamp, and it has the light distributing function of head lamp and the light distributing function of fog lamp simultaneously.Most such compound type head lamps constitute in the following manner, and this mode refers to be provided with a plurality of reflection parts in the lamp house that is formed by front lamp lens and lamp main body.
In addition, realize high brightness, in automotive headlamp in recent years, mostly discharge bulb is used as light source in order to make staggered light beam.
Summary of the invention
But the occasion of employing discharge bulb has following problem in described compound type head lamp.
That is, because discharge bulb only has only the mono-illuminating part, the reflection part that has this discharge bulb like this is exclusively used in staggered light beam.Therefore, as shown in Figure 4, except the reflection part 2 that staggered light beam is used, the reflection part 6 that reflection part 4 that the light beam that travels uses and fog lamp are used must be set in that lamp house is inner.
For this reason, the quantity of reflection part is more, thereby its cost increases.In addition, owing to per 1 space that reflection part occupied in the lamp house reduces, so the folded light beam of parasite reduces.
The present invention be directed to described situation proposes, the object of the present invention is to provide a kind of automotive headlamp, it has the light distributing function of head lamp and fog lamp simultaneously, even under the situation that adopts discharge bulb, its cost is still lower, and can guarantee the folded light beam of the parasite in each reflection part fully.
The present invention is the mode of the reflection part used of the reflection part used by the shared light beam that travels and fog lamp, realizes described purpose.
Promptly, as described in first aspect present invention, the present invention relates to a kind of automotive headlamp, it has the light distributing function of head lamp and fog lamp simultaneously, in the lamp house that forms by front lamp lens and lamp main body, be provided with a plurality of reflection parts, these a plurality of reflection parts have light that light source and this light source the are sent parasite towards the place ahead reflection, it is characterized in that:
In described a plurality of reflection parts, the light source of first reflection part is made of discharge bulb, and the light source of second reflection part is made of the filament lamp with two filaments;
The luminous intensity distribution pattern that the staggered light beam of head lamp is used is formed by described first reflection part and described front lamp lens, and the luminous intensity distribution pattern that luminous intensity distribution pattern that the light beam that travels of head lamp is used and fog lamp are used is formed by described second reflection part and described front lamp lens.
If described " automotive headlamp " has the light distributing function of head lamp and fog lamp simultaneously, then, do not limit especially for other the having or not of light distributing function (such as the luminosity function of, outermost end sign lamp or front-turn signal lamp etc.).
In addition, so-called " by described first reflection part and described front lamp lens " only refers to comprise by first reflection part and forms the mode of luminous intensity distribution pattern, only formed the mode of luminous intensity distribution pattern, formed any notion in the mode of luminosity pattern by first reflection part and front lamp lens by the front lamp lens.
The notion of " by described second reflection part and described front lamp lens " is with described identical.
According to described structure, in the present invention, because the light source of first reflection part is made of discharge bulb, the light source of second reflection part is made of the filament lamp with two filaments, the luminous intensity distribution pattern that staggered light beam is used is formed by first reflection part and front lamp lens, the luminous intensity distribution pattern that luminous intensity distribution pattern that the light beam that travels of head lamp is used and fog lamp are used is formed by second reflection part and front lamp lens, the quantity of the necessary reflection part of light distributing function of existing head lamp of historical facts or anecdotes and fog lamp be 2 just enough, thereby compare with existing automotive headlamp, can reduce by 1 reflection part.And its cost is reduced.Also have, per 1 space that reflection part occupied in the lamp house is increased, can increase the folded light beam of parasite.
If adopt the present invention in the manner described, for the automotive headlamp of the light distributing function that has head lamp and fog lamp simultaneously, even under the situation that adopts discharge bulb, its cost is still lower, and can guarantee the folded light beam of the parasite of each reflection part fully.
As long as described " filament lamp " has two filaments, then its concrete structure is not limited especially, if but according to the mode shown in the second aspect present invention, described filament lamp is made of halogen bulb, this halogen bulb is along the optical axis direction of described second reflection part, basic array is provided with described pair of filament, and below the filament that is positioned at the place ahead, be provided with dimmer, the luminous intensity distribution pattern that fog lamp is used forms the less pattern of top scattering light, and, can make travel light beam and fog lamp comparatively bright as filament lamp.
In addition, according to the described mode of third aspect present invention, the outer shape of described lamp house is following echelon form substantially, and this echelon form refers to from the light fixture front, along left and right directions, width changes up and down, in this case, if according to the described mode in this aspect of the present invention, make relative second reflection part of first reflection part, be arranged at a lamp house side of wider width up and down, then can make the higher staggered light beam of frequency of utilization brighter.This structure is used and the fog lamp light beam existing automotive headlamp of different reflection parts separately for the light beam that travels must be set, the viewpoint in space is a difficulty very in its lamp house, but for the present invention, because 1 second reflection part is just enough, so can adopt described structure at an easy rate.
Description of drawings
Fig. 1 is the front elevation of the automotive headlamp of expression one embodiment of the invention;
Fig. 2 is the section-drawing along the II-II line among Fig. 1;
Fig. 3 is the section-drawing along the III-III line among Fig. 1;
Fig. 4 is existing figure example, identical with Fig. 1 of expression.
The specific embodiment
Below by accompanying drawing, embodiments of the invention are described.
Fig. 1 is the front elevation of the headlight for vehicle of expression one embodiment of the invention, and Fig. 2 and Fig. 3 are the section-drawing along II-II line among Fig. 1 and III-III line.
As shown in these figures, the automotive headlamp 10 of present embodiment is the compound type head lamp, it has the light distributing function of head lamp and fog lamp simultaneously, in the lamp house 16 that forms by front lamp lens 12 and lamp main body 14, two reflection parts 18,20 form in the following manner, and this mode is: they with respectively can along up and down and the mode of left and right directions banking motion be provided with.
Described front lamp lens 12 is transparent lamp lens, and two reflection parts 18,20 have the distribution controls function.
The profile of described lamp house 16 is following echelon form substantially, this echelon form refers to from the light fixture front, its width up and down towards left and right directions changes, a side of the broad of width is provided with reflection part 18 (first reflection part) about this lamp house, is provided with reflection part 20 (second reflection part) in a narrower side.
Described reflection part 18 comprises discharge bulb 22 (light source), parasite 24 and dimmer 26.
Described discharge bulb 22 is the metal halide bulb, and it is fixedly attached on the parasite 24, and illuminating part 22a is positioned on the optical axis Ax1 of reflection part 18.
Described parasite 24 has reflecting surface 24a, this reflecting surface 24a is formed with a plurality of reflecting element 24s on the paraboloid of revolution of optical axis Ax1 as center shaft, from the light of discharge bulb 22 towards the place ahead, deflection scattered reflection, thus can form the luminous intensity distribution pattern that the staggered light beam of head lamp is used.
Described dimmer 26 is arranged at the place ahead of discharge bulb 22, thereby can cut off from the direct light of this discharge bulb lamp 22 towards the place ahead.
Described reflection part 20 comprises filament bulb 28 (light source), parasite 30 and dimmer 32.
Described filament bulb 28 is the halogen bulb of so-called H4 type, along the optical axis Ax2 direction of reflection part 20, and basic couple filament 28a, the 28b of being provided with in upright arrangemently.The filament 28a that is positioned at the front side is positioned on the optical axis Ax2, is provided with dimmer 28c near thereunder.The filament 28b that is positioned at rear side is positioned at the below slightly of optical axis Ax2.
Described parasite 30 has reflecting surface 30a, this reflecting surface 30a is formed with a plurality of reflecting element 30s on the paraboloid of revolution that with optical axis Ax is center shaft, from the light of filament bulb 28 towards the place ahead deflection scattered reflection, thereby form the luminous intensity distribution pattern that luminous intensity distribution pattern that the light beam that travels of head lamp uses and fog lamp are used.The luminous intensity distribution pattern of the usefulness of travelling is formed by the light that the filament 28b of rear side sends, and the luminous intensity distribution pattern that fog lamp is used is formed by the light that the filament 28a of front side sends.
Described dimmer 32 is arranged at the front side of filament bulb 28, and it can cut off from the direct light of this filament bulb 28 towards the place ahead.
Between described lamp house 16 in-to-in front lamp lenss 12 and two reflection parts 18,20, be provided with extension board 34, it covers the outer edge of two reflection parts 18,20.
As shown in Figure 3, be that dimmer 28c cuts off from the filament 28a of front side light towards the below, the reflected light that fog lamp is used just can be guaranteed fully in the below slightly of the center of the above-below direction by optical axis Ax2 being arranged at reflecting surface 30a like this.In addition, among this figure, " FOG " represented light beam is the folded light beam that fog lamp is used, and " HIGH " represented light beam is the folded light beam that light beam uses of travelling.
As mentioned above, in the present embodiment, because the light source of reflection part 18 is made of discharge bulb 22, the light source 20 of reflection part 20 is made of the filament bulb 28 with filament 28a, 28b, the luminous intensity distribution pattern that staggered light beam is used is formed by reflection part 18, the luminous intensity distribution pattern that luminous intensity distribution pattern that the light beam that travels is used and fog lamp are used is formed by reflection part 20, realizes that like this 2 of the necessary reflection parts of light distributing function of head lamp and fog lamp are just enough.
Therefore, compare, can reduce by 1 reflection part with existing automotive headlamp.In addition, its cost is reduced.In addition, the shared space of per 1 reflection part in the lamp house increases, thereby can increase the folded light beam of parasite.
If in the manner described, adopt present embodiment, for the automotive headlamp of the light distributing function that has head lamp and fog lamp simultaneously, even under the situation that adopts discharge bulb, its cost is still lower, and can guarantee the folded light beam of the parasite in each reflection part fully.
Particularly in the present embodiment, because the outer shape of described lamp house 16 is echelon form substantially, this echelon form refers to see along left and right directions from the front of light fixture, the shape that changes of width up and down, the reflection part 18 relative reflection parts 20 that staggered light beam is used, be arranged at the up and down broad side of width of lamp house, can make the higher staggered light beam of frequency of utilization can be brighter like this.In occasion in the manner described, space in the residual lamp house is less, and in the present embodiment, the luminous intensity distribution pattern that the luminous intensity distribution pattern and the fog lamp of the usefulness of travelling are used is formed by identical reflection part 20, though the lamp house volume inside is restricted like this, the light quantity of still can guarantee fully to travel light beam and fog lamp.
In addition, in the present embodiment, because described filament bulb 28 is made of halogen bulb, this halogen bulb is along the optical axis Ax2 direction of reflection part 20, basic couple filament 28a, the 28b of being provided with are provided with dimmer 28c in upright arrangemently in addition below the filament 28a that is positioned at the front side, so the luminous intensity distribution pattern that fog lamp is used forms the less pattern of top scattering light, and, can make travel light beam and fog lamp comparatively bright as filament bulb.
At this moment, because the optical axis Ax2 of reflection part 20 is arranged at the below slightly of the above-below direction center of reflecting surface 30a,, still can guarantee the light quantity of filament fully though the light of filament 28 towards the below of using from fog lamp cuts off for dimmer 28c like this.
In the present embodiment, be illustrated at following light fixture, this light fixture constitutes in the following manner, this mode is: front lamp lens 12 is transparent lamp lens, two reflection parts 18,20 can be realized whole distribution controls functions, but, even according to realizing by the lamp lens step (lens step) that forms by front lamp lens 12 in the light fixture that the mode of distribution controls function constitutes etc., by adopting the structure identical, still can obtain the effect identical with present embodiment with present embodiment.
Claims (3)
1. automotive headlamp, it has the light distributing function of head lamp and fog lamp simultaneously, in the lamp house that is formed by front lamp lens and lamp main body, is provided with a plurality of reflection parts, these a plurality of reflection parts have light that light source and this light source the are sent parasite towards the place ahead reflection, it is characterized in that:
In described a plurality of reflection parts, the light source of first reflection part is made of discharge bulb, and the light source of second reflection part is made of the filament lamp with two filaments;
The luminous intensity distribution pattern that the staggered light beam of head lamp is used is formed by described first reflection part and described front lamp lens, and the luminosity pattern that luminous intensity distribution pattern that the light beam that travels of head lamp is used and fog lamp are used is formed by described second reflection part and described front lamp lens.
2. automotive headlamp according to claim 1, it is characterized in that: described filament lamp is made of halogen bulb, this halogen bulb is along the optical axis direction of described second reflection part, basic described pair of filament is set in upright arrangemently, and is provided with dimmer below the filament that is positioned at the place ahead.
3. automotive headlamp according to claim 1 and 2 is characterized in that: the outer shape of described lamp house is echelon form substantially, and this echelon form refers to that from the light fixture front, along left and right directions, width changes up and down;
Described relatively second reflection part of described first reflection part is arranged at the lamp house broad side of width up and down.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10150692A JPH11329012A (en) | 1998-05-14 | 1998-05-14 | Vehicular headlamp |
| JP150692/98 | 1998-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1236076A CN1236076A (en) | 1999-11-24 |
| CN1097697C true CN1097697C (en) | 2003-01-01 |
Family
ID=15502370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99106489A Expired - Fee Related CN1097697C (en) | 1998-05-14 | 1999-05-13 | Automotive headlamp |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH11329012A (en) |
| CN (1) | CN1097697C (en) |
| DE (1) | DE19922283B4 (en) |
| GB (1) | GB2337322B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4285716B2 (en) | 1999-03-26 | 2009-06-24 | 株式会社小糸製作所 | Vehicle headlamp device |
| DE10016217A1 (en) * | 2000-03-31 | 2001-10-04 | Hella Kg Hueck & Co | Headlights for an airplane |
| UA92001C2 (en) * | 2005-03-01 | 2010-09-27 | Эйчди Девелопментс (Препрайетри) Лимитед | Method for focusing light emitted by light-emitting diode and lamp using light emitting diode as light source |
| FR2897672B1 (en) * | 2006-02-22 | 2008-07-04 | Peugeot Citroen Automobiles Sa | OPTICAL BLOCK HAS ILLUMINATED FUNCTIONS |
| CN103162109B (en) * | 2011-12-14 | 2015-11-18 | 海洋王照明科技股份有限公司 | A kind of light fixture of adjustable light beam width |
| DE102015102214A1 (en) * | 2015-02-17 | 2016-08-18 | Valeo Schalter Und Sensoren Gmbh | Illumination device for illuminating an interior and motor vehicle |
| US20170023200A1 (en) * | 2015-07-24 | 2017-01-26 | Ford Global Technologies, Llc | Headlamp assembly |
| US11959630B2 (en) | 2019-08-08 | 2024-04-16 | Sgm Light A/S | Lighting device with motorised collimation control |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4587601A (en) * | 1981-07-23 | 1986-05-06 | Collins Dynamics, Inc. | Combined flood and spot light incorporating a reflector member of circular and parabolic longitudinal cross section |
| GB2155608B (en) * | 1984-03-07 | 1987-09-09 | Stanley Electric Co Ltd | Vehicle headlamp |
| DE19645625A1 (en) * | 1996-11-06 | 1998-05-07 | Bosch Gmbh Robert | Vehicle headlamp unit |
-
1998
- 1998-05-14 JP JP10150692A patent/JPH11329012A/en active Pending
-
1999
- 1999-05-12 GB GB9911065A patent/GB2337322B/en not_active Expired - Fee Related
- 1999-05-13 CN CN99106489A patent/CN1097697C/en not_active Expired - Fee Related
- 1999-05-14 DE DE19922283A patent/DE19922283B4/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2337322A (en) | 1999-11-17 |
| DE19922283A1 (en) | 1999-12-02 |
| DE19922283B4 (en) | 2005-06-30 |
| CN1236076A (en) | 1999-11-24 |
| GB2337322B (en) | 2000-07-19 |
| GB9911065D0 (en) | 1999-07-14 |
| JPH11329012A (en) | 1999-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030101 Termination date: 20100513 |