Cold cathode fluorescent lamp with molybdenum electrode

Details Cold cathode fluorescent lamp with molybdenum electrode Cold cathode fluorescent lamp with molybdenum electrode

2004-05-27

2008-10-21

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having hollow cathode

C313S623000, C313S633000, C313S636000, C501S064000, C501S066000

Reexamination Certificate

active

07439676

ABSTRACT:
A cold cathode fluorescent lamp (1) has feedthrough pins (5) made from molybdenum or a molybdenum alloy that form a glass-metal seal (6) with a glass composed of 55-75 wt. % SiO2, 13-25 wt. % B2O3, 0-10 wt. % Al2O3, 5-12 wt. % alkali oxides, 0-3 wt. % alkali earth oxides, 0-5 wt. % ZrO2, 0-10 wt. % TiO2und 0-5 wt. % remaining oxides. The lamp has hollow cathodes (4) made from a material of the group molybdenum, molybdenum alloys, niobium, niobium alloys, and the lamp is manufactured in a compact form using conventional manufacturing parameters, and the resulting lamp has crack free, long-term vacuum-tight glass-metal seals.

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