Surrounding a portion of a lamp with light regulation apparatus

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Inductance in the supply circuit

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315DIG4, H05B 4138

Patent

active

052392392

ABSTRACT:
A device for regulating the intensity of light emitted by a lamp includes a variable inductor configured to surround a portion of the lamp and electrical circuitry arranged to connect electrically the variable inductor to the lamp in a manner such that a variation in the inductance of the variable inductor will cause a corresponding variation in the intensity of light emitted by the lamp while the lamp is electrically connected to the variable inductor.

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