H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/80
H01J 61/42 (2006.01) H01J 61/06 (2006.01) H01J 61/067 (2006.01) H01J 61/38 (2006.01) H01J 61/54 (2006.01)
Patent
CA 1161095
ABSTRACT OF THE DISCLOSURE A lighting system having a cathode for emitting electrons from an external surface, the cathode including a cathode sleeve and a cathode base hermetically sealed each to the other and defining a cathode internal chamber, the cathode internal chamber having a cathode gas composition contained therein at a predetermined pressure; a first anode extending internal of the cathode for heating the cathode thereby emitting electrons from the external surface; a second anode positionally located external of cathode for accelerating said electrons emitted from the cathode external surface; and a bulb member encompassing the cathode, the first anode and the second anode in a substantially hermetic seal, the bulb member having a predetermined gas composition contained therein, the gas composition atoms being ionized by the cathode emitted elec- trons, the gas composition ionized atoms radiating in the ultraviolet bandwidth of the electromagnetic spectrum, the bulb member being coated with a fluorescent material for inter- cepting ultraviolet energy responsive to the ionization of the gas composition atoms, the cathode sleeve member being a sub- stantially cylindrically contoured member having a predetermined diameter.
375235
Gowling Lafleur Henderson Llp
Intent Patent A.g.
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