发明名称 |
MINIATURE PROJECTION LAMP |
摘要 |
A high performance miniature projection lamp which includes a glass envelope having a pair of opposite neck portions each with a coaxial central ope ning having a reduced section and an hermetically sealed central chamber having a volume of about 130 mm3 which contains a fill. The fill includes an argon pressu re at room temperature at a range of about 0.5 atmospheres to about 2.0 atmospheres and mercury in an amount in the range of about 5 mg to about 15 mg, and a mixtur e of metal halide material in an amount from about 50 up to 1000 micrograms. A pai r of axially aligned electrodes are positioned at opposite neck portions and separ ated form each other by a predetermined distance. The electrodes each have a shank portion which each having a coil wrapped around its end.
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申请公布号 |
CA2239319(A1) |
申请公布日期 |
1999.03.24 |
申请号 |
CA19982239319 |
申请日期 |
1998.05.29 |
申请人 |
WELCH ALLYN, INC. |
发明人 |
RUTAN, DOUGLAS M.;GRAHAM, TIMOTHY W.;SALVATI, DIANE M. |
分类号 |
H01J61/20;H01J61/86;H01J61/88;(IPC1-7):H05B31/02 |
主分类号 |
H01J61/20 |
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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