Electric lamp and discharge devices – With gas or vapor – With particular gas or vapor
Reexamination Certificate
2005-12-06
2005-12-06
Williams, Joseph (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
With particular gas or vapor
C313S638000
Reexamination Certificate
active
06972521
ABSTRACT:
A low-pressure gas discharge lamp provided with a gas discharge vessel containing a mercury-free gas filling with an indium compound in an amount of about 1 to 10 microgram per cubic centimeter and a partial pressure in the range from 1.0 to 30 micro bar, and a buffer gas for emitting radiation in a continuous spectrum in the visible and near UVA regions of the electromagnetic spectrum, which low-pressure gas discharge lamp is also provided with electrodes and a ballast for controlling the ignition and operation of the lamp.
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Baier Johannes
Hilbig Rainer
Koerber Achim
Scholl Robert Peter
Dong Dalei
Koninklijke Philips Electronics , N.V.
Williams Joseph
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