| 简介 |
Disclosed is an electrode member for cold cathode fluorescent lamps, which is excellent in sputtering resistance, discharge properties and productivity. Also disclosed are a method for producing an electrode member, and a cold cathode fluorescent lamp. Specifically disclosed is a fluorescent lamp (1) comprising a glass tube (20) and an electrode member (10) arranged within the tube (20). The electrode member (10) comprises an electrode main body portion (11) having a bottomed tubular shape and a lead portion (12) arranged at a sealing portion of the glass tube (20), and the portions (11, 12) are formed integrally. The electrode member (10)contains one or more elements selected from the group consisting of Ti, Hf, Zr, V, Nb, Mo, W, Sr, Ba, B, Th, Al, Y, Mg, In, Ca, Sc, Ga, Ge, Ag, Rh, Ta and rare earth elements (excluding Y and Sc) in an amount of 0.01-5.0%% by mass in total, and the balance of the electrode member (10) is composed of an Fe-Ni alloy and impurities. Since the alloy constituting the electrode member (10) is mainly composed of an Fe-Ni alloy, the electrode member (10) has a thermal expansion coefficient close to those of glasses, thereby having excellent plastic formability. In addition, since the alloy constituting the electrode member (10) contains specific additional elements, the electrode member (10) is excellent in sputtering resistance and discharge properties.© KIPO & WIPO 2009 |
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