Title:
ショートアーク型高圧放電ランプ
Document Type and Number:
Japanese Patent JP4741190
Kind Code:
B2
Abstract:
A short arc high-pressure discharge lamp ( 1 ) for dc operation, includes a discharge vessel ( 2 ) that has two necks ( 4 ) diametrically opposite each other, in which an anode ( 26 ) and a cathode ( 7 ) made of tungsten are melted in a gastight manner, and which has a filling made of at least one noble gas and possibly mercury. According to the invention, at least the material of the cathode tip ( 11 ) contains lanthanum oxide La2O3 and at least another oxide from the group consisting of hafnium oxide HfO2 and zirconium oxide ZrO2 in addition to the abovementioned tungsten.
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Inventors:
Lars Menzel
Dietmar Airichmann
Thomas meer
Stephan Bernardner
Wolfgang Spielmann
Gerhard Reichtfleet
Dietmar Airichmann
Thomas meer
Stephan Bernardner
Wolfgang Spielmann
Gerhard Reichtfleet
Application Number:
JP2003573671A
Publication Date:
August 03, 2011
Filing Date:
March 05, 2003
Export Citation:
Assignee:
Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
Plansee Societas Europaea
Plansee Societas Europaea
International Classes:
H01J61/06; H01J61/073; H01J61/86; H01J61/88
Domestic Patent References:
| JP11154487A | ||||
| JP2002110091A | ||||
| JP10112289A | ||||
| JP1161653A | ||||
| JP2002110083A | ||||
| JP2001513255A | ||||
| JP2002260589A | ||||
| JP55155458A | ||||
| JP7153421A |
Attorney, Agent or Firm:
Takuya Kuno
Toshio Yano
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Toshio Yano
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard