Osram Sylvania Inc.

R Kenneth Hutcherson

Joseph V Lima

Philip E Moskowitz

Louise D Cleary

James A Gotay

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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Beverly, MA, United States of America

R Kenneth Hutcherson