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EP0258829A3 - High-pressure discharge lamp and method for driving it - Google Patents

High-pressure discharge lamp and method for driving it Download PDF

Info

Publication number
EP0258829A3
EP0258829A3 EP87112507A EP87112507A EP0258829A3 EP 0258829 A3 EP0258829 A3 EP 0258829A3 EP 87112507 A EP87112507 A EP 87112507A EP 87112507 A EP87112507 A EP 87112507A EP 0258829 A3 EP0258829 A3 EP 0258829A3
Authority
EP
European Patent Office
Prior art keywords
lamp
pressure discharge
melting
heating device
discharge lamp
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Withdrawn
Application number
EP87112507A
Other languages
German (de)
French (fr)
Other versions
EP0258829A2 (en
Inventor
Alexander Dobrusskin
Jürgen Dr. Heider
Wolfgang Schade
Jürgen Dr. vom Scheidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19863630335 external-priority patent/DE3630335A1/en
Priority claimed from DE19863630338 external-priority patent/DE3630338A1/en
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0258829A2 publication Critical patent/EP0258829A2/en
Publication of EP0258829A3 publication Critical patent/EP0258829A3/en
Withdrawn legal-status Critical Current

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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

Zur Verbesserung der Zündeigenschaften einer Metall­ halogenidhochdruckentladungslampe (11) ist diese im Übergangsbereich vom Entladungsgefäß (12) zur Ein­ schmelzung (13) mit einer Heizvorrichtungung (18) versehen, die mittels eines gut haftenden Isolators (20) an der Lampe (11) befestigt ist. Hierfür ist ein nicht ausdampfender Kitt oder Siliziumdioxid besonders geeignet. Die Heizvorrichtung (18) besteht aus einem Heizdraht, der in einer ersten Ausführungsform die Einschmelzung (13) mit drei bis sechs Windungen umgibt. In einer anderen Ausführungsform ist der Heizdraht in einer einer Lochkeramik aus Aluminiumoxid die an beiden Seiten der Einschmelzung mit thermisch gutem Kontakt anliegt, mehrmals hin- und hergeführt. Die Heizvorrichtung (18) weist eine elektrische Leistung von maximal 20 W auf, ist bei ausgeschalteter Lampe (11) aktiviert und wird mit einer von der Betriebsspannung der Lampe (11) abweichenden eigenen Spannungsquelle betrieben. To improve the ignition properties of a metal halide high pressure discharge lamp (11) is this in Transition area from the discharge vessel (12) to the on melting (13) with a heating device (18) provided by means of a well-adhering insulator (20) is attached to the lamp (11). For this is an especially non-evaporating putty or silicon dioxide suitable. The heating device (18) consists of a Heating wire, which in a first embodiment Melting (13) with three to six turns surrounds. In another embodiment, the Heating wire in a perforated ceramic made of aluminum oxide thermally good on both sides of the melt Contact is present, brought back and forth several times. The Heater (18) has an electrical output from a maximum of 20 W when the lamp is switched off (11) and is activated with one of the Operating voltage of the lamp (11) different own Voltage source operated.

EP87112507A 1986-09-05 1987-08-27 High-pressure discharge lamp and method for driving it Withdrawn EP0258829A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19863630335 DE3630335A1 (en) 1986-09-05 1986-09-05 HIGH PRESSURE DISCHARGE LAMP AND METHOD FOR OPERATION
DE3630335 1986-09-05
DE3630338 1986-09-05
DE19863630338 DE3630338A1 (en) 1986-09-05 1986-09-05 High-pressure discharge lamp and a method for operation

Publications (2)

Publication Number Publication Date
EP0258829A2 EP0258829A2 (en) 1988-03-09
EP0258829A3 true EP0258829A3 (en) 1989-11-29

Family

ID=25847268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112507A Withdrawn EP0258829A3 (en) 1986-09-05 1987-08-27 High-pressure discharge lamp and method for driving it

Country Status (1)

Country Link
EP (1) EP0258829A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2649827B1 (en) * 1989-07-13 1992-06-12 Sodern DEVICE FOR HEATING AN ALUMINA TUBE AND DISCHARGE TUBE PROVIDED WITH SUCH A DEVICE
US6084351A (en) * 1996-09-06 2000-07-04 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and temperature control system therefor
DE60129265T2 (en) * 2000-03-17 2008-03-13 Ushiodenki K.K. Mercury high pressure lamp lighting device and means to their ignition
DE10021510A1 (en) * 2000-05-03 2001-11-08 Mannesmann Vdo Ag Lighting device, especially cold cathode lamp with electrical heating, e.g. for LCD display in motor vehicle, uses heating wire which multiply crosses one face of cold cathode lamp
DE102011012789A1 (en) 2011-03-02 2012-09-06 Audi Ag Interior trim part for a motor vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB573141A (en) * 1940-11-12 1945-11-08 Siemens Electric Lamps & Suppl Improvements relating to electric discharge lamps
US3806747A (en) * 1973-03-08 1974-04-23 Gte Sylvania Inc Sodium vapor lamp having an improved grooved alumina arc tube
EP0231935A2 (en) * 1986-02-06 1987-08-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dazzle headlight lamp for motor vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB573141A (en) * 1940-11-12 1945-11-08 Siemens Electric Lamps & Suppl Improvements relating to electric discharge lamps
US3806747A (en) * 1973-03-08 1974-04-23 Gte Sylvania Inc Sodium vapor lamp having an improved grooved alumina arc tube
EP0231935A2 (en) * 1986-02-06 1987-08-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dazzle headlight lamp for motor vehicles

Also Published As

Publication number Publication date
EP0258829A2 (en) 1988-03-09

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Legal Events

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Inventor name: DOBRUSSKIN, ALEXANDER

Inventor name: SCHADE, WOLFGANG

Inventor name: HEIDER, JUERGEN, DR.

Inventor name: VOM SCHEIDT, JUERGEN, DR.