Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Andreas Nittke0
Axel Bunk0
Date of Patent
July 10, 2007
0Patent Application Number
105214030
Date Filed
July 4, 2003
0Patent Primary Examiner
Patent abstract
An electric light bulb, in particular a halogen light bulb designed to be operated by mains voltage includes a substantially axially symmetrical bulb and a single-coil filament mounted in the bulb. The filament includes at least one incandescent coil section disposed outside the bulb axis. The incandescent coil is disposed axially in a transparent cylindrical sleeve which has an interference filter that reflects infra-red rays.
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