H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/138
H01J 61/12 (2006.01) H01J 61/20 (2006.01) H01J 65/04 (2006.01)
Patent
CA 1176688
ABSTRACT OF THE DISCLOSURE According to one aspect, the fill material of an electrodeless discharge lamp excited in the microwave includes, per one cubic centimeter of the volumetric content of the envelope of the lamp, mercury in the amount of 17.6 to 41.3 micromoles, iodine in the amount of 0.2 to 6.2 micromoles, and a metal selected from the group consisting of iron, nickel, cobalt, palladium, and the mixtures thereof, in the amount from 0.38 to 1.91 micromoles. The fill material further comprises argon as the starter gas at the pressure of 30 to 130 torr. It is preferred that the amount of iodine atoms measured in terms of moles per unit volume exceed two times that of the metal measured in the same terms. According to the other aspect, the fill material includes, per cubic centimeter of the volumetric content of the envelope of the lamp, mercury in the amount from 17.6 to 55 micromoles, iodine in terms of atoms in the amount from 0.15 to 6.2 micromoles, a metal selected from the group consisting of dysprosium, holmium, thulium, scandium, and the mixtures thereof, in the amount from 0.13 to 0.39 micromoles, and argon. It is also preferred that the amount of iodine measured in terms of moles per unit volume exceeds three times the amount of the metal measured in the same terms.
400168
Kodama Hitoshi
Shoda Isao
Marks & Clerk
Mitsubishi Denki Kabushiki Kaisha
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