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发明公开
CN101523549A 冷阴极管用电极及使用该电极的冷阴极管 有权

冷阴极管用电极及使用该电极的冷阴极管
摘要：
本发明的冷阴极管用电极(1)具有：筒状侧壁部(2)；设置在该筒状侧壁部的一端的底部(3)；以及形成于所述筒状侧壁部的另一端的开口部(4)。所述电极由高熔点金属(W、Nb、Ta、Mo、Re)的烧结体制成。设所述电极的全长为L、L/2的位置的所述筒状侧壁部的内径为d1、所述底部的内径为d2、连接内径d1的位置与内径d2的位置的所述筒状侧壁部的内表面(5)的曲率半径为R，则所述电极满足下面的条件：L≥6[mm]、d2＞d1、R≥20[mm]。
摘要（英）：

An electrode (1) for a cold cathode tube comprises a tubular sidewall portion (2), a bottom portion (3) provided at one end of the tubular sidewall portion, and an opening portion (4) formed at the other end of the tubular sidewall portion. The electrode comprises a sintered body of a high melting point metal (W, Nb, Ta, Mo, Re). Assuming the overall length of the electrode is L, the inside diameter of the tubular sidewall portion at a position of L/2 is d1, the inside diameter of the bottom portion is d2, and the radius of curvature of the inner surface (5) at the tubular sidewall portion connecting the position of inside diameter d1 withthe position of inside diameter d2 is R, the electrode satisfies following conditions; L=6 [mm], d2>d1, R=20 [mm].

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