Patent ID: 7045959

Claim:
A light tube for a cold electrode fluorescent lamp, comprising: a light tube body having a first end portion, second end portion, and a spiral portion extended between said first and second end portions, wherein said light tube body contains an inert gas, a mercury substance and a layer of phosphor coated on an inner surface of said light tube body; a first electrode, having an enlarged first surface area, disposed at said first end portion in said light tube body, adapted for connecting to a first terminal of electricity; a second electrode, having an enlarged second surface area, disposed at said second end portion in said light tube body, adapted for electrically connecting to a second terminal of electricity for emitting electrons to excite said mercury substance for conducting said electrons to said first electrode as an electric loop, wherein said excited mercury substance emits ultra violet rays causing said phosphor coating to generate visible light; and an activated gas absorber, made of zirconium-vanadium-iron alloy, formed at each of said first and second electrodes at said first and second surface areas thereof for absorbing oxygenic gas within said light tube body, wherein said activated gas absorber is made from a zirconium-vanadium-iron gas absorber, which is activated at an activation temperature of 390 degrees Celsius, integrally coated on said surface area of said respective electrode to form an integral electrode.