EP3314630A1 - Abblendkappe für eine lampe mit zwei separaten strahlungsquellen - Google Patents
Abblendkappe für eine lampe mit zwei separaten strahlungsquellenInfo
- Publication number
- EP3314630A1 EP3314630A1 EP16731575.3A EP16731575A EP3314630A1 EP 3314630 A1 EP3314630 A1 EP 3314630A1 EP 16731575 A EP16731575 A EP 16731575A EP 3314630 A1 EP3314630 A1 EP 3314630A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- height
- section
- length
- dazzle device
- dimming cap
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—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
- F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
- F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments
-
- 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
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/62—One or more circuit elements structurally associated with the lamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
Definitions
- the present invention relates to a dimming cap for a lamp having two separate radiation sources, in particular for a two-filament incandescent lamp having a concave shape with a bottom surface, from which a circumferential side wall extends at least to a height Ho above the bottom surface.
- Two-filament incandescent lamps are frequently used in the field of motor vehicle technology, as they offer two separate sources of radiation for the high-beam and high-beam in the smallest space with the two filaments or incandescent filaments.
- This shading of the light emitted by the incandescent helix is effected via a suitably shaped and arranged anti-dazzle device on the incandescent filament used for the low-beam light.
- Such Abblendkappen be used, for example, in H4 lamps, with which an asymmetric distribution of the dipped beam prescribed for motor vehicles is achieved.
- H4 lamps For asymmetric distribution, when installed in the spotlight as intended, only the anti-dazzle device is rotated about its longitudinal axis by a small angle relative to the horizontal.
- HS 1 lamps for two-wheelers, which are designed for a symmetrical distribution of the dipped beam.
- appropriate Abblendkappen be used for the partial shading of the light emitted by the Abblendglüh mindfull light.
- the object of the present invention is to provide a Abblendkappe for a lamp with two separate radiation sources and in particular for a two-filament incandescent lamp, in which a transition region between the abducting and the high beam segment in the reflector of a headlamp is as small as possible, without affecting the dimming effect , PRESENTATION OF THE INVENTION
- anti-dazzle device according to claim 1.
- Advantageous embodiments of the anti-dazzle device are the subject of the dependent claims or can be found in the following description and the exemplary embodiments.
- the proposed anti-dazzle device has a concave shape with a bottom surface from which a circumferential side wall extends at least to a fixed height Ho above the bottom surface.
- the anti-dazzle device in this case has, in a cross-section formed in the height Ho parallel to the bottom surface, a width which is constant over a first length of the anti-dazzle device within a tolerance of ⁇ 0.1 mm and decreases over a second length segment extending between the first Length portion and a first end of the dimming cap extends.
- the height of the side wall corresponds over the first length portion within a tolerance of ⁇ 0.1 mm of the constant height Ho and increases within the second length section.
- the anti-dazzle device is characterized in that the first length section is between 70% and 98%> of the length of the anti-dazzle device in the cross section formed in the height Ho.
- a third longitudinal section may also extend between the first longitudinal section and a second end opposite the first end of the dimming cap.
- the height of the side wall over the third length section may correspond to the constant height Ho, but may also differ from Ho, for example also rise or fall. This optional third length only serves for rounding to avoid sharp corners and is usually very short, in particular shorter than the second length.
- the width of the anti-dazzle device and the height of the side wall are thus kept constant within the tolerances over the largest possible length. This corresponds to a correspondingly long horizontal course of the upper side edge of the anti-dazzle device in a proper installation of the associated lamp in a headlamp before the width decreases and the height of the side wall increases accordingly.
- the dimming cap can be used both in symmetrical lamps (with a symmetrical distribution of the dipped beam) and in asymmetrical lamps (with an asymmetrical distribution of the dipped beam).
- the height may increase over the entire second longitudinal section or only within an end region of this longitudinal section.
- the height of the side wall increases over the entire second length section. Both the reduction in the width of the dimming cap and the increase in the height of the side wall can follow a linear or a non-linear function.
- the design chosen for the particular lamp depends on the relative arrangement and dimension of the filament to be shaded for the anti-dazzle device. The aim is to achieve according to the requirements for the respective headlights as straight as possible extending Abschattungskante over a large radiation range.
- the proposed anti-dazzle device is arranged in a lamp with two separate radiation sources and in particular in a two-filament incandescent lamp on the incandescent filament used for the generation of the low beam.
- a corresponding lamp thus comprises the two incandescent filaments as well as the arranged on one of the filament Abblendkappe.
- Such lamps are preferably used in motor vehicle headlights or in two-wheeled vehicles.
- other applications come into question in which a comparable high beam and Abbiend- effect is to be achieved with a headlight.
- FIG. 1 in a schematic representation of a first embodiment of
- 3 is a schematic representation of a second embodiment of the proposed anti-dazzle device in cross-section at the height Ho; 4 shows the anti-dazzle device of the second exemplary embodiment in the cross-section perpendicular thereto; and
- Fig. 5 is a schematic representation of the arrangement of the proposed anti-dazzle device in a two-filament incandescent lamp.
- Figure 1 shows a section through a dimming cap 1 in a first embodiment of the present invention in a schematic representation.
- This section is made parallel to the bottom surface of the anti-dazzle device 1 at the height Ho. Therefore, the circumferential side wall 2 can be seen in the section, which has a constant width wo over a first longitudinal section LI of length L of the anti-dazzle device 1.
- this width then decreases, as can be seen in the figure.
- the width w remains constant over a range of about 90% and then decreases over the last 10% of the length L of the dimming cap 1.
- third longitudinal section L3 which serves for the rounding of corners, as indicated in the figure 1.
- FIG. 2 shows a cross section perpendicular to the cross sectional plane of FIG. 1 through the middle or longitudinal axis of the anti-dazzle device 1.
- the bottom surface 3 and the side wall 2 can be seen in cross section.
- the dashed line shows schematically the course of the upper edge of the side wall 2 outside this cross-sectional plane. It can be seen from this figure that the side wall 2 has the constant height Ho over the first longitudinal section LI and only rises in height in the second longitudinal section L2. At the top of the anti-dazzle device 1, the height Hi is reached.
- Figure 3 shows a further embodiment of a Abblendkappe 1 in a schematic representation, again in cross section parallel to the bottom surface in height Ho.
- the width w of the anti-dazzle device already decreases after about 70% of the total length L of the anti-dazzle device.
- FIG. 4 again shows the cross-section perpendicular to the cross-sectional plane of FIG
- FIG. 3 In this figure, the constant height Ho of the side wall over the longitudinal section LI and an adjoining short section area in the longitudinal section To recognize L2. Only at the end of the anti-dazzle device 1, the height H of the side wall increases up to a final value Hi at the top of the anti-dazzle device 1. Both embodiments, due to the long horizontal course of the upper edge of the side wall 2, a small transition region between the segments for high-beam and main beam is achieved in the headlight. This minimizes losses in the generation of the high and low beams.
- Exemplary dimensions of the proposed anti-dazzle device are in the range between 7 and 10 mm for the length L of the anti-dazzle device, in the range Ho between 1, 8 and 3.6 mm, at the constant width where in the range between 7.5 and 9, 5 mm and at the height Hi at the top of the anti-dazzle device in the range between 3.8 and 4.4 mm.
- FIG. 5 shows in highly schematic form a two-filament incandescent lamp with an embodiment of the proposed antiglare cap in plan view.
- the two filaments 4, 5 can be seen, of which the left in the figure arranged filament 4 for the generation of the high beam and the right arranged filament 5 is used for the generation of the low beam.
- the proposed Abblendkappe 1 is arranged to shade the light emission of this filament 5 in the lower half space.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202015103408.3U DE202015103408U1 (de) | 2015-06-29 | 2015-06-29 | Abblendkappe für Zweifaden-Glühlampe |
| PCT/EP2016/064284 WO2017001242A1 (de) | 2015-06-29 | 2016-06-21 | Abblendkappe für eine lampe mit zwei separaten strahlungsquellen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3314630A1 true EP3314630A1 (de) | 2018-05-02 |
Family
ID=53677302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16731575.3A Withdrawn EP3314630A1 (de) | 2015-06-29 | 2016-06-21 | Abblendkappe für eine lampe mit zwei separaten strahlungsquellen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20180180237A1 (de) |
| EP (1) | EP3314630A1 (de) |
| JP (1) | JP6793135B2 (de) |
| CN (1) | CN108140539B (de) |
| DE (1) | DE202015103408U1 (de) |
| WO (1) | WO2017001242A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1901179A1 (de) * | 1969-01-10 | 1970-08-06 | Patra Patent Treuhand | Zweifadenhalogengluehlampe fuer Kraftfahrzeugscheinwerfer |
| DE19544012A1 (de) * | 1995-11-27 | 1997-05-28 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Elektrische Glühlampe mit Abblendkappe und Verfahren zur Herstellung einer derartigen Lampe sowie Abblendkappe für eine elektrische Glühlampe |
| EP0812004B1 (de) * | 1996-06-04 | 2003-07-09 | Honda Giken Kogyo Kabushiki Kaisha | Lampenbirne für Fahrzeuge |
| DE19707245A1 (de) * | 1997-02-25 | 1998-08-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zur Herstellung einer elektrischen Glühlampe |
| DE10145427A1 (de) * | 2001-09-14 | 2003-04-03 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Glühlampe für Kraftfahrzeugscheinwerfer |
| JP5948529B1 (ja) * | 2013-05-07 | 2016-07-06 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | バッフルを含む自動車のフロント照明ランプ |
-
2015
- 2015-06-29 DE DE202015103408.3U patent/DE202015103408U1/de not_active Expired - Lifetime
-
2016
- 2016-06-21 JP JP2017567805A patent/JP6793135B2/ja not_active Expired - Fee Related
- 2016-06-21 CN CN201680039091.7A patent/CN108140539B/zh not_active Expired - Fee Related
- 2016-06-21 EP EP16731575.3A patent/EP3314630A1/de not_active Withdrawn
- 2016-06-21 WO PCT/EP2016/064284 patent/WO2017001242A1/de not_active Ceased
- 2016-06-21 US US15/739,463 patent/US20180180237A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017001242A1 (de) | 2017-01-05 |
| JP2018526767A (ja) | 2018-09-13 |
| JP6793135B2 (ja) | 2020-12-02 |
| CN108140539A (zh) | 2018-06-08 |
| CN108140539B (zh) | 2020-04-21 |
| DE202015103408U1 (de) | 2015-07-09 |
| US20180180237A1 (en) | 2018-06-28 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17Q | First examination report despatched |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20210723 |