发明名称 |
Method for forming cold spot region and discharge lamp with such cold spot region |
摘要 |
A method for forming a cold spot region on a discharge tube of a discharge lamp is disclosed. In the method, a discharge tube is formed, and a tubular extension is formed on at least one end of the discharge tube. The tubular extension has a smaller diameter than the diameter of the discharge tube end. The tubular extension is formed so that a free end of the tubular extension extends away from the end of the discharge tube. A reduced thickness portion is formed on the tubular extension. The reduced thickness portion is formed as a membrane. A discharge lamp is also disclosed, which comprises a discharge tube with a tubular extension located at an end of the discharge tube. The tubular extension has a smaller diameter than the diameter of the discharge tube end, and the tubular extension comprises a reduced thickness portion. The reduced thickness portion is a membrane, preferably formed of the material of the tubular extension.
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申请公布号 |
US2004207326(A1) |
申请公布日期 |
2004.10.21 |
申请号 |
US20040751156 |
申请日期 |
2004.01.02 |
申请人 |
BAJNOK JANOS;HORVATH ANDRAS;LUKACS SANDOR |
发明人 |
BAJNOK JANOS;HORVATH ANDRAS;LUKACS SANDOR |
分类号 |
H01J61/32;H01J61/72;(IPC1-7):H01J17/16;H01J61/30;H01J61/33 |
主分类号 |
H01J61/32 |
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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