WO1997015064A1 - Entladungslampe, insbesondere für fahrzeugbeleuchtungssysteme - Google Patents
Entladungslampe, insbesondere für fahrzeugbeleuchtungssysteme Download PDFInfo
- Publication number
- WO1997015064A1 WO1997015064A1 PCT/DE1996/001703 DE9601703W WO9715064A1 WO 1997015064 A1 WO1997015064 A1 WO 1997015064A1 DE 9601703 W DE9601703 W DE 9601703W WO 9715064 A1 WO9715064 A1 WO 9715064A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- component
- discharge lamp
- lamp according
- insulating material
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/56—One or more circuit elements structurally associated with the lamp
Definitions
- Discharge lamp in particular for vehicle lighting systems
- the invention relates to a discharge lamp, in particular for vehicle lighting systems, according to the preamble of claim 1.
- Such a discharge lamp is known from DE 36 03 743 AI.
- This discharge lamp has a discharge vessel in which two electrodes are arranged.
- the discharge lamp has a base made of electrically insulating material, through which electrical leads are led to the electrodes.
- Discharge lamps are usually operated at high voltage and it has been shown that electromagnetic noise propagates along the supply lines to the lamp during their operation.
- DE 43 10 307 AI proposes to arrange an interference suppression circuit in a housing part near the discharge lamp in order to prevent or at least attenuate the spread of the electromagnetic interference.
- the suppressor circuit has, among other things, a capacitor which is connected in parallel between the leads to the discharge lamp.
- this additional interference suppression circuit is very complex and causes additional costs.
- the discharge lamp according to the invention with the features of claim 1 has the advantage that a capacitive component is integrated with a few additional components in the base of the discharge lamp, through which the spread of electromagnetic interference via the leads of the lamp is prevented or at least weakened.
- FIG. 1 shows a discharge lamp in a longitudinal section
- FIG. 2 shows the discharge lamp in a cross section along line II-II in FIG. 1.
- FIGS. 1 and 2 A discharge lamp for vehicle lighting systems shown in FIGS. 1 and 2, in particular
- Motor vehicle headlight has a discharge vessel 10, into which two electrodes 12 and 13 protrude.
- the electrodes are 12, 13 arranged opposite each other in the direction of the longitudinal axis 14 of the lamp.
- the discharge vessel 10 contains a mixture of different substances which are excited to emit light when a voltage is applied between the electrodes 12, 13.
- the discharge vessel 10 preferably contains mercury under high pressure and, if appropriate, a metal halide or a mixture of different metal halides.
- an inert gas can be contained in the discharge vessel, for example xenon.
- An electrical feed line 16 or 17 is connected to each electrode 12, 13, which leads to a base 20 of the
- Discharge lamp leads The connected to the side facing the base 20 'electrode 12 supply line 16 is approximately centrally to the discharge vessel 10 and approximately parallel to the longitudinal axis 14 of the lamp and connected to the other electrode 13 of lead 17 is arranged eccentrically and substantially parallel to the longitudinal axis 14 of the lamp.
- the base 20 of the discharge lamp consists of an electrically insulating material, for example plastic or ceramic.
- a component 22 made of electrically conductive material is connected to the end of the feed line 16 arranged in the base 20 and is designed, for example, as a sleeve which is round at least on its outer circumference and is arranged coaxially to the longitudinal axis 14 of the lamp.
- the component 22 is enclosed at least on its outer circumference by the insulating material of the base 20.
- the component 22 has a length 1 in the direction of the longitudinal axis 14 of the discharge lamp and a radius r1 with respect to the longitudinal axis 14.
- the base 20 has a widening 21 in which the end of the feed line 17 is arranged.
- the component 26 is essentially ring-shaped and has a connecting section 27 via which it is connected to the end of the feed line 17 and an annular section 28 which surrounds the component 22.
- the annular section 28 of the component 26 is preferably arranged coaxially to the component 22 and thus to the longitudinal axis 14, so that the distance between the outer circumference of the component 22 and the inner circumference of the section 28 is constant.
- the annular section 28 of the component 26 When viewed in the direction of the longitudinal axis 14 of the lamp, the annular section 28 of the component 26 is arranged in the same area as the component 22 and preferably extends over the same length 1 as the component 22. The annular section 28 of the component 26 is thus in
- the annular section 28 of the component 26 is arranged on a radius r2 around the longitudinal axis 14 and is preferably designed to be closed over its entire circumference, but can also be interrupted. At its end pointing away from the discharge vessel 10, the annular section 28 of the component 26 has an edge 29 which projects radially outward to the longitudinal axis 14.
- the component 26 is almost completely enclosed by the insulating material of the base 20.
- the supply line 17 can be provided with an electrically insulating sheath 30 in its area outside the base 20 towards the electrode 13.
- the components 22 and 26 are preferably made of metal, for example copper, and are electrically separated from one another by the electrically insulating material of the base 20 located between them. When the discharge lamp is in operation, the components 22 and 26 produce a capacitive effect with the insulating material of the base 20 and form a capacitive component which is connected in parallel between the two supply lines 16 and 17.
- the capacitance C of this component can be determined using the following equation:
- ⁇ r is the dielectric constant of the insulating material of the base
- ⁇ 0 is the electrical field constant
- a capacitive component with a predetermined capacitance can be formed by correspondingly varying the dimensions 1 and / or rl and / or r2.
- the capacity can be changed in a simple manner, in particular by varying the length 1.
- the material for the base 20 of the discharge lamp can be, for example, polyetherimide, PEI,
- Connection elements arranged on the side of the base 20 opposite the discharge vessel 10 are connected to the feed lines 16, 17.
- a plug-in sleeve 31 or a plug pin can be connected to the central feed line 16 and a conductor ring 32 to the off-center feed line 17.
- the base 20 of the discharge lamp is preferably produced by injection molding, the components 22, 26 being introduced into an injection mold in their predetermined association with one another and then encapsulated with the electrically insulating plastic material of the base.
- a plate-like design of these components can also be provided.
- a plate-shaped, electrically conductive component is likewise connected to each supply line 16, 17, the two components being separated from one another by the insulating material of the base 20 and forming a plate capacitor.
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9515397A JPH10510948A (ja) | 1995-10-13 | 1996-09-11 | 放電ランプ、例えば、車両照明装置用放電ランプ |
EP96929181A EP0797839B1 (de) | 1995-10-13 | 1996-09-11 | Entladungslampe, insbesondere für fahrzeugbeleuchtungssysteme |
US08/860,352 US5889360A (en) | 1995-10-13 | 1996-09-11 | Discharge lamp with capacitive socket |
DE59603781T DE59603781D1 (de) | 1995-10-13 | 1996-09-11 | Entladungslampe, insbesondere für fahrzeugbeleuchtungssysteme |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19538064.9 | 1995-10-13 | ||
DE19538064A DE19538064A1 (de) | 1995-10-13 | 1995-10-13 | Entladungslampe, insbesondere für Fahrzeugbeleuchtungssysteme |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997015064A1 true WO1997015064A1 (de) | 1997-04-24 |
Family
ID=7774697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/001703 WO1997015064A1 (de) | 1995-10-13 | 1996-09-11 | Entladungslampe, insbesondere für fahrzeugbeleuchtungssysteme |
Country Status (7)
Country | Link |
---|---|
US (1) | US5889360A (de) |
EP (1) | EP0797839B1 (de) |
JP (1) | JPH10510948A (de) |
KR (1) | KR100437299B1 (de) |
DE (2) | DE19538064A1 (de) |
ES (1) | ES2140891T3 (de) |
WO (1) | WO1997015064A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6201348B1 (en) * | 1998-02-20 | 2001-03-13 | Osram Sylvania Inc. | Capacitive coupling starting aid for metal halide lamp |
GB9825296D0 (en) * | 1998-11-18 | 1999-01-13 | Microlights Ltd | A improvement to electrical lamps |
ATE370517T1 (de) | 2003-03-18 | 2007-09-15 | Koninkl Philips Electronics Nv | Gasentladungslampe |
FR2862744B1 (fr) * | 2003-11-21 | 2006-09-29 | Valeo Vision | Systeme de fixation d'une source lumineuse sur une contrepartie d'un projecteur de vehicule automobile et procede de mise en oeuvre |
US7270453B2 (en) * | 2004-12-21 | 2007-09-18 | General Electric Company | Heat resistant plastic lamp components and methods of forming |
JP5695090B2 (ja) * | 2010-01-28 | 2015-04-01 | コーニンクレッカ フィリップス エヌ ヴェ | 高さを減らしたバーナー、及び当該バーナーを製造する方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3343914A1 (de) * | 1983-12-05 | 1985-06-13 | May & Christe Gmbh, Transformatorenwerke, 6370 Oberursel | Adapter fuer gasentladungslampen bzw. niederspannungslampen |
EP0187494A1 (de) * | 1984-12-13 | 1986-07-16 | GTE Laboratories Incorporated | Fluoreszenzlampe vom Strahltyp mit Doppelkathode und mit kapazitivem Ballastwiderstand |
EP0231935A2 (de) * | 1986-02-06 | 1987-08-12 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Kraftfahrzeugscheinwerferlampe |
WO1991010255A1 (en) * | 1989-12-22 | 1991-07-11 | Gte Products Corporation | Negative glow lamp |
GB2276714A (en) * | 1993-03-30 | 1994-10-05 | Bosch Gmbh Robert | Headlight for vehicles |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7610451A (nl) * | 1976-09-21 | 1978-03-23 | Philips Nv | Ontladingslamp. |
US5039904A (en) * | 1989-09-28 | 1991-08-13 | General Electric Company | Mount for miniature arc lamp |
US5389856A (en) * | 1992-01-17 | 1995-02-14 | U.S. Philips Corporation | High-pressure discharge lamp with an integral fuse-capacitor component |
-
1995
- 1995-10-13 DE DE19538064A patent/DE19538064A1/de not_active Withdrawn
-
1996
- 1996-09-11 JP JP9515397A patent/JPH10510948A/ja not_active Ceased
- 1996-09-11 DE DE59603781T patent/DE59603781D1/de not_active Expired - Fee Related
- 1996-09-11 ES ES96929181T patent/ES2140891T3/es not_active Expired - Lifetime
- 1996-09-11 US US08/860,352 patent/US5889360A/en not_active Expired - Fee Related
- 1996-09-11 EP EP96929181A patent/EP0797839B1/de not_active Expired - Lifetime
- 1996-09-11 KR KR1019970703424A patent/KR100437299B1/ko not_active IP Right Cessation
- 1996-09-11 WO PCT/DE1996/001703 patent/WO1997015064A1/de active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3343914A1 (de) * | 1983-12-05 | 1985-06-13 | May & Christe Gmbh, Transformatorenwerke, 6370 Oberursel | Adapter fuer gasentladungslampen bzw. niederspannungslampen |
EP0187494A1 (de) * | 1984-12-13 | 1986-07-16 | GTE Laboratories Incorporated | Fluoreszenzlampe vom Strahltyp mit Doppelkathode und mit kapazitivem Ballastwiderstand |
EP0231935A2 (de) * | 1986-02-06 | 1987-08-12 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Kraftfahrzeugscheinwerferlampe |
WO1991010255A1 (en) * | 1989-12-22 | 1991-07-11 | Gte Products Corporation | Negative glow lamp |
GB2276714A (en) * | 1993-03-30 | 1994-10-05 | Bosch Gmbh Robert | Headlight for vehicles |
Also Published As
Publication number | Publication date |
---|---|
DE59603781D1 (de) | 2000-01-05 |
EP0797839A1 (de) | 1997-10-01 |
EP0797839B1 (de) | 1999-12-01 |
ES2140891T3 (es) | 2000-03-01 |
JPH10510948A (ja) | 1998-10-20 |
DE19538064A1 (de) | 1997-04-17 |
KR987000677A (ko) | 1998-03-30 |
US5889360A (en) | 1999-03-30 |
KR100437299B1 (ko) | 2004-09-04 |
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