H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/073 (2006.01) G03B 21/14 (2006.01)
Patent
CA 2721636
Disclosed is a tungsten electrode for ultra-high pressure mercury lamps, which is composed of an electrode rod, a first coil wound around the front end side of the electrode rod, and a second coil wound around the electrode rod starting from the end of the first coil. The diameter of a tungsten wire constituting the first coil is smaller than the diameter of a tungsten wire con-stituting the second coil.
L'invention porte sur une électrode en tungstène pour des lampes au mercure à ultra haute pression, qui est composée d'une tige d'électrode, d'une première bobine enroulée autour du côté d'extrémité avant de la tige d'électrode, et d'une seconde bobine enroulée autour de la tige d'électrode à partir de l'extrémité de la première bobine. Le diamètre d'un fil de tungstène constituant la première bobine est inférieur au diamètre d'un fil de tungstène constituant la seconde bobine.
Nishimura Junpei
Yoshizawa Toshio
Iwasaki Electric Co. Ltd.
Ridout & Maybee Llp
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