发明申请
- 专利标题: Discharge Lamp and Electrode for Use in the Same
- 专利标题(中): 放电灯和电极用于同一灯
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申请号: US10586353申请日: 2005-01-19
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公开(公告)号: US20080252216A1公开(公告)日: 2008-10-16
- 发明人: Hiroshi Takahashi , Yukio Hara , Masahiro Kikuchi , Yoshiichi Horikoshi , Hiroto Watanabe , Ryouichi Yoshida
- 申请人: Hiroshi Takahashi , Yukio Hara , Masahiro Kikuchi , Yoshiichi Horikoshi , Hiroto Watanabe , Ryouichi Yoshida
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JP2004-011960 20040120
- 国际申请: PCT/JP05/00612 WO 20050119
- 主分类号: H01J61/04
- IPC分类号: H01J61/04
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.
公开/授权文献
- US07750546B2 Discharge lamp and electrode for use in the same 公开/授权日:2010-07-06