发明名称 |
Discharge lamp and electrode for use in the same |
摘要 |
It is possible to enhance the luminance of a cold-cathode type discharge lamp and to contribute to a prolongation of service life thereof. A discharge lamp 1 is provided with an electrode 3 having a cup 4 with such a shape that a bottom is provided at each of both opposed ends of the glass tube 2. The cup 4 is connected to a lead-in wire 8 which is inserted through the end of the glass tube 2 and held thereby. The collision-preventing ring 5 covering an end surface of the cup 4 is provided to the open end 4a of the cup 4. The porous tungsten disk 6 impregnated with a ternary metal oxide composed of barium (Ba), aluminum (Al), and calcium (Ca) as an electron emission material is provided at a bottom in an inside of the cup 4.
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申请公布号 |
US7750546(B2) |
申请公布日期 |
2010.07.06 |
申请号 |
US20050586353 |
申请日期 |
2005.01.19 |
申请人 |
SONY CORPORATION |
发明人 |
TAKAHASHI HIROSHI;HARA YUKIO;KIKUCHI MASAHIRO;HORIKOSHI YOSHIICHI;WATANABE HIROTO;YOSHIDA RYOUICHI |
分类号 |
H01J1/62;H01J61/06;H01J61/067 |
主分类号 |
H01J1/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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