A fluorescent lamp and method for making electrode...

Details A fluorescent lamp and method for making electrode... A fluorescent lamp and method for making electrode...

H - Electricity

01

J

H01J 1/13 (2006.01) H01J 9/02 (2006.01) H01J 61/067 (2006.01)

Patent

CA 2297422

A fluorescent lamp comprises a glass tubular body defining a discharge space, and first and second electrode assemblies mounted in the discharge space in opposition to each other, each of the electrode assemblies comprising a first electrode and a second electrode. Each of the first electrodes comprises a metal lead wire with an electron-emitting material disposed on a free end thereof, and each of the second electrodes comprises a cup-shaped tube coaxially surrounding one of the first electrodes and the electron-emitting material disposed on the first electrode. The second electrode tube and the electron emitting material therein form an annular gap therebetween.

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