Energy efficient incandescent lamp with improved filament...

Details Energy efficient incandescent lamp with improved filament... Energy efficient incandescent lamp with improved filament...

H - Electricity

01

J

315/68, 313/172.

H01J 7/44 (2006.01) H01J 17/34 (2006.01) H01J 19/78 (2006.01)

Patent

CA 1247190

ENERGY-EFFICIENT INCANDESCENT LAMP WITH IMPROVED FILAMENT CHARACTERISTICS ABSTRACT An energy-efficient incandescent lamp has a transparent heat mirror oating (4) placed on the envelope (2). A diode (30) is connected in series with the fila- ment (6). This reduces the voltage across the filament and increases the current passing through it, so that shorter and greater diameter filament wire is used. This makes a stronger filament than is used in a conventional incandescent lamp with no diode, and makes the filament more resistant to displacement by mechanical forces. _

450934

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