| 摘要 |
A filament support for supporting and centering a filament in a double-ended lamp envelope includes an inlead portion defining a central axis, a filament attachment portion and a centering portion interconnecting the inlead portion and the filament attachment portion. The centering portion includes first and second arcuate segments for contacting an inner surface of the lamp envelope. The first and second arcuate segments are axially spaced apart and are interconnected by an axial segment. Filament supports are connected to opposite ends of the filament for accurately centering the filament in the lamp envelope. The filament supports are particularly useful in a tubular incandescent lamp capsule having an infrared reflective coating on its outer surface.
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