发明名称 |
Super-high pressure mercury lamp |
摘要 |
A high pressure mercury lamp for a projector device in which a discharge vessel made of quartz glass is filled with at least 0.15 mg/mm3 mercury in which both devitrification of as well as damage to the discharge vessel can be eliminated is obtained by the quartz glass of the discharge vessel being given a fictive temperature of 1000° C. to 1250° C., a total content of alkali metals of 0.1 ppm by weight to 3 ppm by weight and an aluminum content of from 1 ppm by weight to 30 ppm by weight.
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申请公布号 |
US2002175624(A1) |
申请公布日期 |
2002.11.28 |
申请号 |
US20020152003 |
申请日期 |
2002.05.22 |
申请人 |
USHIODENKI KABUSHIKI KAISHA |
发明人 |
FUKUSHIMA KENSUKE;OKAMOTO TETU |
分类号 |
H01J61/20;H01J61/30;H01J61/86;(IPC1-7):H01J17/16 |
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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