TELECOM Digest OnLine - Sorted: Induction Coil Lamps

Induction Coil Lamps
22 Sep 2005 13:28:38 -0700

Induction coils have been used in telephones almost since the
beginning. Now they are being used as a light source for highway

The coil is at the center, surrounded by a electron-ion-plasma
material and inert gas. The globe is coated with phosphors. The coil
creates UV radiation that makes the globe glow. Lifespan is claimed
to be 27 years and used for backlit traffic signs.

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