Multiple intensity lamp controller and lighting system

Details Multiple intensity lamp controller and lighting system Multiple intensity lamp controller and lighting system

1982-02-19

1986-05-06

Sikes, William L.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Multiple filament load devices

315154, 315158, 315159, H01J 744, H01J 1346, H01J 1734, H01J 1978, H01J 2316, H01J 2996

Patent

active

045874573

ABSTRACT:
A multiple intensity lamp controller and lighting system utilizing a multiple filament lamp having a primary filament and a secondary filament coupled in series with each other and with a power source and having a variable impedance coupled across the secondary filament. The intensity of the multiple filament lamp is made comparatively bright when the value of the variable impedance is made comparatively low. Conversely, the intensity of the multiple filament lamp is made comparatively dim when the value of the variable impedance is made comparatively high.

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