发明授权
US4959588A Discharge lamp having a discharge vessel made with a ceramic closing
member with an indented inner surface
失效
具有放电容器的放电灯由具有凹陷内表面的陶瓷封闭构件制成
- 专利标题： Discharge lamp having a discharge vessel made with a ceramic closing member with an indented inner surface
- 专利标题（中）： 具有放电容器的放电灯由具有凹陷内表面的陶瓷封闭构件制成
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申请号： US327892申请日： 1989-03-23
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公开(公告)号： US4959588A公开(公告)日： 1990-09-25
- 发明人: Denes Vida , Peter Ferenci
- 申请人： Denes Vida , Peter Ferenci
- 申请人地址： HUX Budapest
- 专利权人： Tungsram RT
- 当前专利权人： Tungsram RT
- 当前专利权人地址： HUX Budapest
- 优先权： HUX1533/88 19880328
- 主分类号： H01J61/24
- IPC分类号： H01J61/24 ; H01J61/28 ; H01J61/36
摘要：
In a high-pressure gas discharge lamp, particularly a high-pressure sodium vapor lamp, comprising a tubular discharge vessel being made of a ceramic material and including electrodes and a filling and ceramic plug elements for closing the end regions of the discharge vessel, receiving a current lead-in connecting the electrode with an outer source of supply voltage, wherein at least one of the plug elements is built up with surface elements of different height levels and determining a cold chamber for receiving the metal additive, the distance between the surface of the metal additive and the current lead-in measured as length of the way determined on the surface elements is at least 4 mm.
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