发明授权
US07002299B2 Discharge lamp with specific amounts of halogen, oxygen, hydrogen and carbon
有权
放电灯具有特定量的卤素,氧气,氢气和碳
- 专利标题: Discharge lamp with specific amounts of halogen, oxygen, hydrogen and carbon
- 专利标题(中): 放电灯具有特定量的卤素,氧气,氢气和碳
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申请号: US10697090申请日: 2003-10-31
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公开(公告)号: US07002299B2公开(公告)日: 2006-02-21
- 发明人: Masataka Kawaguchi , Motoko Uramoto , Dan Masashi , Yoshihiro Horikawa
- 申请人: Masataka Kawaguchi , Motoko Uramoto , Dan Masashi , Yoshihiro Horikawa
- 申请人地址: JP Tokyo
- 专利权人: Ushiodenki Kabushiki Kaisha
- 当前专利权人: Ushiodenki Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理商 David S. Safran
- 优先权: JP2002-319980 20021101
- 主分类号: H01J61/12
- IPC分类号: H01J61/12
摘要:
A discharge lamp which maintains a high lumen maintenance factor even when operated for a long time is obtained in a discharge lamp which has a silica glass discharge vessel and a pair of opposed electrodes in the discharge vessel and in which the discharge vessel is filled with at least 0.15 mg/mm3 mercury, a rare gas with argon as the main component, and 2×10−4 μmole/mm3 to 7×10−3 μmole/mm3 bromine by meeting the following conditions when feeding a direct current of 5 mA between the electrodes and a glow discharge produced: 1.0×10−4≦b/a≦1.2×10−1 Condition (1) c/a≦1.4×10−1 Condition (2) d/a≦1.2×10−2 Condition (3) e/a≦1.4×10−2 Condition (4) where a is the emission intensity of the argon with a wavelength of 668 nm, b is the emission intensity of OH with a wavelength of 309 nm, c is the emission intensity of hydrogen (H) with a wavelength of 656 nm, d is the emission intensity of C2 with a wavelength of 517 nm, and e is the emission intensity of CH with a wavelength of 431 nm.
公开/授权文献
- US20040090183A1 Discharge lamp 公开/授权日:2004-05-13
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