Title:
ガス放電灯
Document Type and Number:
Japanese Patent JP2005510830
Kind Code:
A
Abstract:
A gas discharge lamp is described with a discharge gas comprising a light-emitting substance enclosed in a discharge vessel, which is characterized in particular in that the light-emitting substance is formed by a compound of at least one element from the group IV-A (Si, Ge, Sn, Pb) and at least one element from the group VI-A (O, S, Se, and Te) of the periodic system, with the exception of the compound GeSe. It was surprisingly found that the emission maximum lies approximately in the center of the visible spectral range of the light with such a substance, in particular GeTe, at a comparatively low vapor pressure already, and that in addition a very high radiant efficacy is obtained. Furthermore, the emitted light has a color temperature substantially corresponding to that of natural daylight also without additives, in contrast to many other gas discharge lamps, thus opening the way to a use of the lamp for general lighting purposes.
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Inventors:
Robert Pascol
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Johannes Bayer
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Johannes Bayer
Application Number:
JP2003504439A
Publication Date:
April 21, 2005
Filing Date:
June 06, 2002
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H01J61/16; H01J61/12; H01J61/20; H01J65/04; (IPC1-7): H01J61/16; H01J61/20; H01J65/04
Attorney, Agent or Firm:
Kosaku Sugimura