HIGH-PRESSURE DISCHARGE LAMP

The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel having a first and a second edge; a first and a second metal closing member closing off the vessel, at least one of said closing members comprising a metal current feedthrough; an intermediate layer between...

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Main Authors HOVENKAMP RONALD A, VERLINDEN BART T, HAKKENS FRANCISCUS J. G
Format Patent
LanguageEnglish
Published 27.08.2007
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Abstract The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel having a first and a second edge; a first and a second metal closing member closing off the vessel, at least one of said closing members comprising a metal current feedthrough; an intermediate layer between the edge of the ceramic discharge vessel and at least the first closing member, with a coefficient of thermal expansion in between those of the vessel and the first closing member, wherein the first edge is profiled. The profiled edge may be formed by a beveled inner and outer surface of the edge of the vessel. This provides a low-cost sealing, which is particularly suitable for high-pressure metal halide lamps.
AbstractList The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel having a first and a second edge; a first and a second metal closing member closing off the vessel, at least one of said closing members comprising a metal current feedthrough; an intermediate layer between the edge of the ceramic discharge vessel and at least the first closing member, with a coefficient of thermal expansion in between those of the vessel and the first closing member, wherein the first edge is profiled. The profiled edge may be formed by a beveled inner and outer surface of the edge of the vessel. This provides a low-cost sealing, which is particularly suitable for high-pressure metal halide lamps.
Author HOVENKAMP RONALD A
VERLINDEN BART T
HAKKENS FRANCISCUS J. G
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Snippet The invention relates to a high-pressure discharge lamp comprising a ceramic discharge vessel having a first and a second edge; a first and a second metal...
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SubjectTerms BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
Title HIGH-PRESSURE DISCHARGE LAMP
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