EP0878830A1 - Glühlampe für Verkehrssignale - Google Patents
Glühlampe für Verkehrssignale Download PDFInfo
- Publication number
- EP0878830A1 EP0878830A1 EP97810294A EP97810294A EP0878830A1 EP 0878830 A1 EP0878830 A1 EP 0878830A1 EP 97810294 A EP97810294 A EP 97810294A EP 97810294 A EP97810294 A EP 97810294A EP 0878830 A1 EP0878830 A1 EP 0878830A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- incandescent lamp
- electrodes
- lamp according
- filament
- socket
- 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- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/04—Lamps for purposes other than general lighting for indicating
Definitions
- Traffic signal lamps must also be clearly visible during the day. At night, however, it is desirable that they shine dimly with it they do not dazzle and residents are less disturbed by the light will. To achieve this, it is known to use dimmer circuits to use.
- the present invention has for its object a Incandescent lamp for traffic signals indicate which less at night shines bright than during the day and compared to the known light bulbs with dimmer circuit is cheaper. This task will solved by the combination of features of the claims.
- the light bulb according to the invention can be switched on separately Has filaments, at night one of them (the more powerful) stay off. As a result, the electricity requirement is considerable reduced. This is not the case with dimmer circuits. Because the more powerful filament is only operated during the day, increased their lifespan accordingly.
- the circuit for the Lamp can be designed so that if one filament fails at least the other one is still operated. This is the Lamp considerably more reliable than conventional incandescent lamps. The maintenance intervals can therefore also be extended. This can save additional costs.
- Figures 1 and 2 show two views an incandescent lamp according to the invention.
- the light bulb 1 shown has a B-22 3-pin socket 2 with three laterally protruding pins 3.
- the angular distance of the Pins 3 is not even. As a result, the light bulb can only in a predetermined position in a corresponding version be used.
- the base 2 has two contact elements on the underside 4, 5.
- a piston 6 is held, the is welded to a glass support 7. Through the glass support 7 extend four electrodes 8-11.
- the free ends of two electrodes each 8-11 are each by a filament 13, 14 made of tungsten wire connected with each other.
- Each coil 13, 14 is by three of the Bracket 12 supported.
- One electrode 8, 10 per coil 13, 14 is soldered to the base housing 16.
- the corresponding housing version is connected to the neutral conductor.
- the other two electrodes 9, 11 are each connected to one of the contact elements 4, 5.
- the two coils 13, 14 cannot have one shown control device can be controlled separately.
- the one of the filaments 13 has a lower light output than the other, e.g. about 40% of the total output. Both will be during the day Spirals 13, 14 switched on and off in parallel, so that the necessary Brightness of the light signal is achieved. After dusk on the other hand, only the coil 13 with the weaker one Performance operated. This reduces the energy requirements of the Incandescent lamp by about 60%.
- the energy saving for e.g. 100 plants can up to SFr. Amount to 180,000 per year.
Landscapes
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
Claims (6)
- Glühlampe für Verkehrssignale, umfassend einen Kolben (6) und einen Sockel (2), wobei im Kolben (6) mindestens drei Elektroden (8-11) enthalten sind, wobei jeweils zwei Elektroden (8-11) durch je eine Glühwendel (13, 14) verbunden sind, und wobei die Elektroden (8-11) mit mindestens drei Kontaktstellen (4, 5, 16) des Sockels (2) verbunden sind, derart, dass die Wendeln (13, 14) unabhängig voneinander einschaltbar sind.
- Glühlampe nach Anspruch 1, wobei je eine der Elektroden (8, 10) pro Wendel (13, 14) an eine gemeinsame Kontaktstelle (16) angeschlossen ist.
- Glühlampe nach Anspruch 2, wobei die gemeinsame Kontaktstelle (16) das Sockelgehäuse ist.
- Glühlampe nach einem der Ansprüche 1 bis 3, wobei der Sockel (2) als Mehr-Stift-Sockel ausgebildet ist, der den Einsatz in eine Lampenfassung nur in einer vorgegebenen Position ermöglicht.
- Glühlampe nach einem der Ansprüche 1 bis 4, wobei die beiden Wendeln (13, 14) für unterschiedliche Lichtleistung ausgelegt sind.
- Glühlampe nach Anspruch 5, wobei die Lichtleistung der einen Wendel (13) höchstens 40 % der Lichtleistung beider Wendeln zusammen beträgt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97810294A EP0878830A1 (de) | 1997-05-12 | 1997-05-12 | Glühlampe für Verkehrssignale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97810294A EP0878830A1 (de) | 1997-05-12 | 1997-05-12 | Glühlampe für Verkehrssignale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0878830A1 true EP0878830A1 (de) | 1998-11-18 |
Family
ID=8230229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97810294A Withdrawn EP0878830A1 (de) | 1997-05-12 | 1997-05-12 | Glühlampe für Verkehrssignale |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0878830A1 (de) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638068A (en) * | 1970-01-08 | 1972-01-25 | Ralph C Watson | Dual intensity signal lamp |
| US3968395A (en) * | 1972-09-25 | 1976-07-06 | Siemens Aktiengesellschaft | Two filament electric bulb traffic light |
| US4080548A (en) * | 1976-01-19 | 1978-03-21 | Precision Controls, Inc. | Lighting system having dimming capabilities |
| DE2924200A1 (de) * | 1979-06-15 | 1980-12-18 | Siemens Ag | Mehrfadenlampe |
| US4567397A (en) * | 1982-06-05 | 1986-01-28 | U.S. Philips Corporation | Electric lamp having a light source aligned to a cap |
| US5515245A (en) * | 1993-07-10 | 1996-05-07 | Hella Kg Hueck & Co. | Apparatus for releasably attaching a lamp on a reflector of a motor vehicle headlight |
-
1997
- 1997-05-12 EP EP97810294A patent/EP0878830A1/de not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638068A (en) * | 1970-01-08 | 1972-01-25 | Ralph C Watson | Dual intensity signal lamp |
| US3968395A (en) * | 1972-09-25 | 1976-07-06 | Siemens Aktiengesellschaft | Two filament electric bulb traffic light |
| US4080548A (en) * | 1976-01-19 | 1978-03-21 | Precision Controls, Inc. | Lighting system having dimming capabilities |
| DE2924200A1 (de) * | 1979-06-15 | 1980-12-18 | Siemens Ag | Mehrfadenlampe |
| US4567397A (en) * | 1982-06-05 | 1986-01-28 | U.S. Philips Corporation | Electric lamp having a light source aligned to a cap |
| US5515245A (en) * | 1993-07-10 | 1996-05-07 | Hella Kg Hueck & Co. | Apparatus for releasably attaching a lamp on a reflector of a motor vehicle headlight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
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| AX | Request for extension of the european patent |
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| 17P | Request for examination filed |
Effective date: 19990330 |
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| AKX | Designation fees paid |
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| 17Q | First examination report despatched |
Effective date: 20001123 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20010403 |