Low-pressure vapor discharge lamp with a mercury-free gas filling

A low-pressure vapor discharge lamp has a radiation-transmitting discharge vessel ( 1 ) enclosing, in a gastight manner, a discharge space ( 3 ) provided with a gas filling. The gas filling is substantially free of mercury and comprises an indium compound and a buffer gas. The discharge vessel ( 1 )...

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Bibliographic Details
Main Authors HILDENBRAND VOLKER D, SCHMIDT PETER J, SENSEN MAURICE JACQUES S.E, JUESTEL THOMAS
Format Patent
LanguageEnglish
Published 14.06.2007
Subjects
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMISTRY
DYES
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:A low-pressure vapor discharge lamp has a radiation-transmitting discharge vessel ( 1 ) enclosing, in a gastight manner, a discharge space ( 3 ) provided with a gas filling. The gas filling is substantially free of mercury and comprises an indium compound and a buffer gas. The discharge vessel ( 1 ) comprises discharge means ( 2 ) for maintaining a gas discharge in the discharge space ( 3 ). The discharge vessel ( 1 ) is provided with a luminescent layer ( 4 ). The luminescent layer ( 4 ) comprises a luminescent material based on a nitridosilicate or on an oxonitridosilicate. Preferably, the luminescent material comprises rare-earth emitters. Preferably, the luminescent material comprises europium, cerium, or ytterbium emitters.
Bibliography:Application Number: US20040578457